Add newcomer guide, agent guide, and sample app files

DIACHRON.md explains the framework to newcomers joining a
diachron-based project.  diachron/AGENTS.md helps AI coding
agents work with the framework conventions and commands.
backend/types.ts and backend/services.ts are sample starting
points for application-specific types and services.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitignore

@@ -1,5 +1,5 @@
 **/node_modules
-framework/downloads
-framework/binaries
-framework/.nodejs
-framework/.nodejs-config
+diachron/downloads
+diachron/binaries
+diachron/.nodejs
+diachron/.nodejs-config

CLAUDE.md

@@ -38,7 +38,7 @@ master process. Key design principles:
 
 **Format TypeScript code:**
 ```bash
-cd express && ../cmd pnpm biome check --write .
+cd backend && ../cmd pnpm biome check --write .
 ```
 
 **Build Go master process:**
@@ -54,9 +54,9 @@ cd master && go build
 
 ### Components
 
-- **express/** - TypeScript/Express.js backend application
+- **backend/** - TypeScript/Express.js backend application
 - **master/** - Go-based master process for file watching and process management
-- **framework/** - Managed binaries (Node.js, pnpm), command wrappers, and
+- **diachron/** - Managed binaries (Node.js, pnpm), command wrappers, and
   framework-specific library code
 - **monitor/** - Go file watcher that triggers rebuilds (experimental)
 
@@ -68,7 +68,7 @@ Responsibilities:
 - Proxy web requests to backend workers
 - Behaves identically in all environments (no dev/prod distinction)
 
-### Express App Structure
+### Backend App Structure
 
 - `app.ts` - Main Express application setup with route matching
 - `routes.ts` - Route definitions
@@ -78,7 +78,7 @@ Responsibilities:
 
 ### Framework Command System
 
-Commands flow through: `./cmd` → `framework/cmd.d/*` → `framework/shims/*` → managed binaries in `framework/binaries/`
+Commands flow through: `./cmd` → `diachron/cmd.d/*` → `diachron/shims/*` → managed binaries in `diachron/binaries/`
 
 This ensures consistent tooling versions across the team without system-wide installations.
 
@@ -94,8 +94,8 @@ This ensures consistent tooling versions across the team without system-wide ins
 
 ## Platform Requirements
 
-Linux x86_64 only (currently). Requires:
-- Modern libc for Go binaries
+Linux or macOS on x86_64. Requires:
+- Modern libc for Go binaries (Linux)
 - docker compose (for full stack)
 - fd, shellcheck, shfmt (for development)
 

DIACHRON.md

@@ -0,0 +1,168 @@
+# What is diachron?
+
+diachron is a web framework for TypeScript and Node.js.  It uses a Go-based
+master process that handles file watching, building, process management, and
+request proxying.  The application code is TypeScript running on Express.js.
+
+If you're joining a project that uses diachron, this document will orient you.
+
+## Why diachron exists
+
+diachron was built around a few frustrations with mainstream web frameworks:
+
+- **No dev/prod split.**  Most frameworks behave differently in development and
+  production.  diachron doesn't.  The master process watches files, rebuilds,
+  and manages workers the same way everywhere.  There is no `NODE_ENV`.
+
+- **Managed tooling.**  Node.js, pnpm, and other tools are downloaded and
+  pinned to exact versions inside the project.  You don't install them
+  system-wide.  Everyone on the team runs the same binaries.
+
+- **PostgreSQL, directly.**  No ORM, no database abstraction layer.  You write
+  SQL (via Kysely for type safety) and talk to PostgreSQL.  If you need
+  MySQL or SQLite support, this is not the framework for you.
+
+- **Debuggability over magic.**  Everything is explicit and inspectable.
+  Logging and observability are first-class concerns, not afterthoughts.
+
+diachron is inspired by the
+[Taking PHP Seriously](https://slack.engineering/taking-php-seriously/) essay
+from Slack Engineering.  It's designed for small to medium systems (what we
+call "Ring 0 and Ring 1") -- not heavy-compliance or banking-scale
+applications.
+
+## How it works
+
+When you run `./master`, the following happens:
+
+1. The Go master process starts and watches your TypeScript source files.
+2. It builds the backend using `@vercel/ncc`, producing a single bundled JS
+   file.
+3. It starts one or more Node.js worker processes running your Express app.
+4. It proxies HTTP requests from port 8080 to the workers.
+5. When you edit a source file, it rebuilds and restarts the workers
+   automatically.
+6. If a worker crashes, it restarts automatically.
+
+There is no separate "dev server" or "hot module replacement."  The master
+process is the only way to run the application.
+
+## Project structure
+
+A diachron project looks like this:
+
+```
+.
+├── DIACHRON.md      # This file (framework overview for newcomers)
+├── master/          # Go master process (framework-owned)
+├── logger/          # Go logging service (framework-owned)
+├── diachron/        # Managed binaries, shims, framework library
+│   ├── AGENTS.md    # Guide for AI coding agents
+│   ├── binaries/    # Downloaded Node.js, pnpm (gitignored)
+│   ├── cmd.d/       # Commands available via ./cmd
+│   ├── shims/       # Wrappers that use managed binaries
+│   └── ...
+├── backend/         # Your application code
+│   ├── app.ts       # Entry point
+│   ├── routes.ts    # Route definitions
+│   ├── handlers.ts  # Route handlers
+│   ├── services.ts  # Service layer
+│   ├── types.ts     # Application types
+│   ├── config.ts    # Application configuration
+│   └── diachron/    # Framework library code (framework-owned)
+├── cmd              # Run managed commands (./cmd pnpm install, etc.)
+├── develop          # Development-only commands (./develop reset-db, etc.)
+├── mgmt             # Management commands safe for production
+├── sync.sh          # Install/update all dependencies
+├── master           # The compiled master binary (after sync)
+└── docker-compose.yml
+```
+
+### File ownership
+
+There are two owners of files in a diachron project:
+
+- **You own** everything in `backend/` (except `backend/diachron/`), plus
+  `docker-compose.yml`, `package.json`, and anything else you create.
+- **The framework owns** `master/`, `logger/`, `diachron/`,
+  `backend/diachron/`, and the top-level scripts (`cmd`, `develop`, `mgmt`,
+  `sync.sh`, `check.sh`).
+
+Don't modify framework-owned files.  This separation keeps framework upgrades
+clean.
+
+## Getting started
+
+```bash
+# Install dependencies and build the master process
+./sync.sh
+
+# Start the application
+./master
+```
+
+The app will be available at `http://localhost:8080`.
+
+You need Linux or macOS on x86_64.  For the full stack (database, Redis,
+etc.), you also need `docker compose`.
+
+## The command system
+
+diachron has three types of commands, separated by intent and safety:
+
+- **`./cmd <command>`** -- Run managed tools (node, pnpm, tsx, etc.).  These
+  use the project's pinned versions, not whatever is installed on your system.
+
+  ```bash
+  ./cmd pnpm install
+  ./cmd pnpm test
+  ```
+
+- **`./mgmt <command>`** -- Management commands that are safe to run in
+  production.  Migrations, user management, that sort of thing.
+
+  ```bash
+  ./mgmt migrate
+  ./mgmt add-user
+  ```
+
+- **`./develop <command>`** -- Development commands that may be destructive.
+  Database resets, fixture loading, etc.  These are gated in production.
+
+  ```bash
+  ./develop reset-db
+  ./develop db           # Open a database shell
+  ```
+
+The rule of thumb: if you'd run it at 3am while tired and worried, it's a
+`mgmt` command.  If it destroys data on purpose, it's a `develop` command.
+
+## Key concepts
+
+### Call and Result
+
+diachron wraps Express's `Request` and `Response` in its own types called
+`Call` and `Result`.  This avoids shadowing and keeps the framework's
+interface distinct from Express internals.  Your handlers receive a `Call`
+and return a `Result`.
+
+### Routes
+
+Routes are defined as data (arrays of `Route` objects in `routes.ts`), not
+through decorators or method chaining.  The framework processes them into
+Express handlers.
+
+### No environment variables for behavior
+
+There is no `NODE_ENV`, no `DEBUG`, no mode switching.  Configuration that
+must vary between deployments (database URLs, secrets) lives in
+configuration files, but the application's behavior doesn't branch on
+environment.
+
+## Further reading
+
+- `README.md` -- Project introduction and requirements
+- `diachron/AGENTS.md` -- Guide for AI coding agents
+- `docs/` -- Design documents and philosophy
+- `docs/commands.md` -- Detailed explanation of the command system
+- `docs/concentric-circles.md` -- What diachron is (and isn't) designed for

README.md

@@ -2,16 +2,13 @@ diachron
 
 ## Introduction
 
-Is your answer to some of these questions "yes"?  If so, you might like
-diachron.  (When it comes to that dev/test/prod one, hear us out first, ok?)
-
 - Do you want to share a lot of backend and frontend code?
 
 - Are you tired of your web stack breaking when you blink too hard?
 
 - Have you read [Taking PHP
-  Seriously](https://slack.engineering/taking-php-seriously/) and wish you had
-  something similar for Typescript?
+  Seriously](https://slack.engineering/taking-php-seriously/) and do you wish
+  you had something similar for Typescript?
 
 - Do you think that ORMs are not all that?  Do you wish you had first class
   unmediated access to your database?  And do you think that database
@@ -35,6 +32,9 @@ diachron.  (When it comes to that dev/test/prod one, hear us out first, ok?)
   you're trying to fix?  We're talking authentication, authorization, XSS,
   https, nested paths, all that stuff.
 
+Is your answer to some of these questions "yes"?  If so, you might like
+diachron.  (When it comes to that dev/test/prod one, hear us out first, ok?)
+
 ## Getting started
 
 Different situations require different getting started docs.
@@ -44,12 +44,21 @@ Different situations require different getting started docs.
 
 ## Requirements
 
-To run diachron, you currently need to have a Linux box running x86_64 with a
-new enough libc to run golang binaries.  Support for other platforms will come
-eventually.
+To run diachron, you need Linux or macOS on x86_64.  Linux requires a new
+enough libc to run golang binaries.
 
 To run a more complete system, you also need to have docker compose installed.
 
+### Database
+
+To connect to the database, you need psql (PostgreSQL client, for
+`./diachron/common.d/db`)
+
+- macOS: `brew install libpq` (and follow the caveat to add it to your PATH),
+  or `brew install postgresql`
+- Debian/Ubuntu: `apt install postgresql-client`
+- Fedora/RHEL: `dnf install postgresql`
+
 ### Development requirements
 
 To hack on diachron itself, you need the following:

TODO.md

@@ -1,8 +1,11 @@
 ## high importance
 
+- Many of the UUIDs generated are not UUIDv7.  This needs to be fixed.
+
 - [ ] Add unit tests all over the place.
   - ⚠️ Huge task - needs breakdown before starting
 
+- [ ] map exceptions back to source lines
 
 - [ ] migrations, seeding, fixtures
 
@@ -53,6 +56,13 @@ CREATE TABLE app.customer_metadata (...);
       leaves around `master-bin`, `logger-bin`, and `diachron:nnnn` processes.
       Huge problem.
 
+- [ ] Fix format used by master (and logger?)'s output: it should be logfmt
+  - A lot of other stuff should probably be logfmt too but maybe we can get to
+    that later
+
+- [ ] master rebuilds (or tries to) too many times; need some sort of debounce
+      or whatever it's called
+
 ## medium importance
 
 - [ ] Add a log viewer

backend/.npmrc

@@ -0,0 +1 @@
+shamefully-hoist=true

backend/app.ts

@@ -0,0 +1,20 @@
+// This is a sample file provided by diachron.  You are encouraged to modify it.
+
+
+
+
+import { core } from "./diachron/core";
+
+import { routes } from "./routes";
+import {makeApp}from'./diachron/app'
+
+
+const app = makeApp({routes});
+
+
+core.logging.log({ source: "logging", text: ["1"] });
+
+
+
+
+app.start()

backend/build.sh

@@ -6,4 +6,4 @@ DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 
 cd "$DIR"
 
-../cmd pnpm ncc build ./app.ts -o dist
+../cmd pnpm ncc build ./app.ts -o dist --source-map

backend/check-deps.ts

@@ -0,0 +1,66 @@
+import { readFileSync } from "node:fs";
+import { dirname, join } from "node:path";
+import { fileURLToPath } from "node:url";
+
+const __dirname = dirname(fileURLToPath(import.meta.url));
+
+interface PackageJson {
+    dependencies?: Record<string, string>;
+    devDependencies?: Record<string, string>;
+}
+
+function readPackageJson(path: string): PackageJson {
+    const content = readFileSync(path, "utf-8");
+    return JSON.parse(content);
+}
+
+function getAllDependencyNames(pkg: PackageJson): Set<string> {
+    const names = new Set<string>();
+    for (const name of Object.keys(pkg.dependencies ?? {})) {
+        names.add(name);
+    }
+    for (const name of Object.keys(pkg.devDependencies ?? {})) {
+        names.add(name);
+    }
+    return names;
+}
+
+const diachronPkgPath = join(__dirname, "diachron", "package.json");
+const backendPkgPath = join(__dirname, "package.json");
+
+const diachronPkg = readPackageJson(diachronPkgPath);
+const backendPkg = readPackageJson(backendPkgPath);
+
+const diachronDeps = getAllDependencyNames(diachronPkg);
+const backendDeps = getAllDependencyNames(backendPkg);
+
+const duplicates: string[] = [];
+
+for (const dep of diachronDeps) {
+    if (backendDeps.has(dep)) {
+        duplicates.push(dep);
+    }
+}
+
+if (duplicates.length > 0) {
+    console.error("Error: Duplicate dependencies found.");
+    console.error("");
+    console.error(
+        "The following dependencies exist in both backend/package.json and backend/diachron/package.json:",
+    );
+    console.error("");
+    for (const dep of duplicates.sort()) {
+        console.error(`  - ${dep}`);
+    }
+    console.error("");
+    console.error(
+        "Dependencies in backend/diachron/package.json are provided by the framework",
+    );
+    console.error(
+        "and must not be duplicated in backend/package.json. Remove them from",
+    );
+    console.error("backend/package.json to fix this error.");
+    process.exit(1);
+}
+
+console.log("No duplicate dependencies found.");

backend/check.sh

@@ -8,7 +8,8 @@ check_dir="$DIR"
 
 out_dir="$check_dir/out"
 
-source "$check_dir"/../framework/shims/common
-source "$check_dir"/../framework/shims/node.common
+source "$check_dir"/../diachron/shims/common
+source "$check_dir"/../diachron/shims/node.common
 
+$ROOT/cmd tsx "$check_dir/check-deps.ts"
 $ROOT/cmd pnpm tsc --outDir "$out_dir"

backend/diachron/app.ts

@@ -0,0 +1,137 @@
+// FIXME: rename this to make-app.ts and adjust imports accordingly
+
+import{contentTypes} from './content-types'
+import{httpCodes}from'./http-codes'
+import express, {
+type Express,
+    type NextFunction,
+    type Request as ExpressRequest,
+    type Response as ExpressResponse,
+} from "express";
+import { formatError, formatErrorHtml } from "./errors";
+import {isRedirect,     InternalHandler,    AuthenticationRequired,
+    AuthorizationDenied, Call,type Method, type ProcessedRoute,methodParser, type Result, type Route,massageMethod } from "./types";
+
+
+
+import { cli } from "./cli";
+import{processRoutes}from'./routing'
+
+
+process.on('uncaughtException', (err) => {
+    console.error(formatError(err));
+    process.exit(1);
+});
+
+process.on('unhandledRejection', (reason) => {
+    console.error(formatError(reason));
+});
+
+
+type MakeAppArgs={routes:Route[],
+    processTitle?: string,
+}
+ 
+export interface DiachronApp extends Express {
+    start: () => void 
+}
+
+const makeApp = ({routes, processTitle}: MakeAppArgs) => {
+    if (process.title) {
+        process.title = `diachron:${cli.listen.port}`;
+    }
+
+    const processedRoutes = processRoutes(routes)
+
+    async function handler(
+    req: ExpressRequest,
+    _res: ExpressResponse,
+): Promise<Result> {
+    const method = await methodParser.parseAsync(req.method);
+
+    const byMethod = processedRoutes[method];
+    console.log(
+        "DEBUG: req.path =",
+        JSON.stringify(req.path),
+        "method =",
+        method,
+    );
+    for (const [_idx, pr] of byMethod.entries()) {
+        const match = pr.matcher(req.path);
+        console.log("DEBUG: trying pattern, match result =", match);
+        if (match) {
+            console.log("match", match);
+            const resp = await pr.handler(req);
+
+            return resp;
+        }
+    }
+
+    const retval: Result = {
+        code: httpCodes.clientErrors.NotFound,
+        contentType: contentTypes.text.plain,
+        result: "not found!",
+    };
+
+    return retval;
+}
+
+    // I don't like going around tsc but this is simple enough that it's probably OK.
+    const app = express() as DiachronApp
+    app.start = function() {
+        this.listen(cli.listen.port, cli.listen.host, () => {
+            console.log(`Listening on ${cli.listen.host}:${cli.listen.port}`);
+        });
+    };
+    
+
+
+
+
+    app.use(express.json())
+
+    app.use(express.urlencoded({ extended: true }));
+
+    app.use(async (req: ExpressRequest, res: ExpressResponse) => {
+        const result0 = await handler(req, res);
+        
+        const code = result0.code.code;
+    const result = result0.result;
+
+    console.log(result);
+
+    // Set any cookies from the result
+    if (result0.cookies) {
+        for (const cookie of result0.cookies) {
+            res.cookie(cookie.name, cookie.value, cookie.options ?? {});
+        }
+    }
+
+    if (isRedirect(result0)) {
+        res.redirect(code, result0.redirect);
+    } else {
+        res.status(code).send(result);
+    }
+    });
+
+    app.use(
+        (
+            err: Error,
+            _req: ExpressRequest,
+            res: ExpressResponse,
+            _next: NextFunction,
+        ) => {
+            console.error(formatError(err));
+            res.status(500).type("html").send(formatErrorHtml(err));
+        },
+    );
+
+return app;
+}
+
+export{makeApp};
+
+function _isPromise<T>(value: T | Promise<T>): value is Promise<T> {
+    return typeof (value as any)?.then === "function";
+}
+

backend/diachron/auth/password.spec.ts

@@ -0,0 +1,80 @@
+// Tests for auth/password.ts
+// Pure unit tests - no database needed
+
+import assert from "node:assert/strict";
+import { describe, it } from "node:test";
+import { hashPassword, verifyPassword } from "./password";
+
+describe("password", () => {
+    describe("hashPassword", () => {
+        it("returns a scrypt formatted hash", async () => {
+            const hash = await hashPassword("testpassword");
+            assert.ok(hash.startsWith("$scrypt$"));
+        });
+
+        it("includes all scrypt parameters", async () => {
+            const hash = await hashPassword("testpassword");
+            const parts = hash.split("$");
+            // Format: $scrypt$N$r$p$salt$hash
+            assert.equal(parts.length, 7);
+            assert.equal(parts[0], "");
+            assert.equal(parts[1], "scrypt");
+            // N, r, p should be numbers
+            assert.ok(!Number.isNaN(parseInt(parts[2], 10)));
+            assert.ok(!Number.isNaN(parseInt(parts[3], 10)));
+            assert.ok(!Number.isNaN(parseInt(parts[4], 10)));
+        });
+
+        it("generates different hashes for same password (different salt)", async () => {
+            const hash1 = await hashPassword("testpassword");
+            const hash2 = await hashPassword("testpassword");
+            assert.notEqual(hash1, hash2);
+        });
+    });
+
+    describe("verifyPassword", () => {
+        it("returns true for correct password", async () => {
+            const hash = await hashPassword("correctpassword");
+            const result = await verifyPassword("correctpassword", hash);
+            assert.equal(result, true);
+        });
+
+        it("returns false for incorrect password", async () => {
+            const hash = await hashPassword("correctpassword");
+            const result = await verifyPassword("wrongpassword", hash);
+            assert.equal(result, false);
+        });
+
+        it("throws for invalid hash format", async () => {
+            await assert.rejects(
+                verifyPassword("password", "invalid-hash"),
+                /Invalid password hash format/,
+            );
+        });
+
+        it("throws for non-scrypt hash", async () => {
+            await assert.rejects(
+                verifyPassword("password", "$bcrypt$10$salt$hash"),
+                /Invalid password hash format/,
+            );
+        });
+
+        it("works with empty password", async () => {
+            const hash = await hashPassword("");
+            const result = await verifyPassword("", hash);
+            assert.equal(result, true);
+        });
+
+        it("works with unicode password", async () => {
+            const hash = await hashPassword("p@$$w0rd\u{1F511}");
+            const result = await verifyPassword("p@$$w0rd\u{1F511}", hash);
+            assert.equal(result, true);
+        });
+
+        it("is case sensitive", async () => {
+            const hash = await hashPassword("Password");
+            const result = await verifyPassword("password", hash);
+            assert.equal(result, false);
+        });
+    });
+});

backend/diachron/auth/service.spec.ts

@@ -0,0 +1,419 @@
+// Tests for auth/service.ts
+// Uses InMemoryAuthStore - no database needed
+
+import assert from "node:assert/strict";
+import { beforeEach, describe, it } from "node:test";
+import { AuthService } from "./service";
+import { InMemoryAuthStore } from "./store";
+
+describe("AuthService", () => {
+    let store: InMemoryAuthStore;
+    let service: AuthService;
+
+    beforeEach(() => {
+        store = new InMemoryAuthStore();
+        service = new AuthService(store);
+    });
+
+    describe("register", () => {
+        it("creates a new user", async () => {
+            const result = await service.register(
+                "test@example.com",
+                "password123",
+                "Test User",
+            );
+
+            assert.equal(result.success, true);
+            if (result.success) {
+                assert.equal(result.user.email, "test@example.com");
+                assert.equal(result.user.displayName, "Test User");
+                assert.ok(result.verificationToken.length > 0);
+            }
+        });
+
+        it("fails when email already registered", async () => {
+            await service.register("test@example.com", "password123");
+            const result = await service.register(
+                "test@example.com",
+                "password456",
+            );
+
+            assert.equal(result.success, false);
+            if (!result.success) {
+                assert.equal(result.error, "Email already registered");
+            }
+        });
+
+        it("creates user without displayName", async () => {
+            const result = await service.register(
+                "test@example.com",
+                "password123",
+            );
+
+            assert.equal(result.success, true);
+            if (result.success) {
+                assert.equal(result.user.displayName, undefined);
+            }
+        });
+    });
+
+    describe("login", () => {
+        beforeEach(async () => {
+            // Create and verify a user
+            const result = await service.register(
+                "test@example.com",
+                "password123",
+                "Test User",
+            );
+            if (result.success) {
+                // Verify email to activate user
+                await service.verifyEmail(result.verificationToken);
+            }
+        });
+
+        it("succeeds with correct credentials", async () => {
+            const result = await service.login(
+                "test@example.com",
+                "password123",
+                "cookie",
+            );
+
+            assert.equal(result.success, true);
+            if (result.success) {
+                assert.ok(result.token.length > 0);
+                assert.equal(result.user.email, "test@example.com");
+            }
+        });
+
+        it("fails with wrong password", async () => {
+            const result = await service.login(
+                "test@example.com",
+                "wrongpassword",
+                "cookie",
+            );
+
+            assert.equal(result.success, false);
+            if (!result.success) {
+                assert.equal(result.error, "Invalid credentials");
+            }
+        });
+
+        it("fails with unknown email", async () => {
+            const result = await service.login(
+                "unknown@example.com",
+                "password123",
+                "cookie",
+            );
+
+            assert.equal(result.success, false);
+            if (!result.success) {
+                assert.equal(result.error, "Invalid credentials");
+            }
+        });
+
+        it("fails for inactive user", async () => {
+            // Create a user but don't verify email (stays pending)
+            await service.register("pending@example.com", "password123");
+
+            const result = await service.login(
+                "pending@example.com",
+                "password123",
+                "cookie",
+            );
+
+            assert.equal(result.success, false);
+            if (!result.success) {
+                assert.equal(result.error, "Account is not active");
+            }
+        });
+
+        it("stores metadata", async () => {
+            const result = await service.login(
+                "test@example.com",
+                "password123",
+                "cookie",
+                { userAgent: "TestAgent", ipAddress: "192.168.1.1" },
+            );
+
+            assert.equal(result.success, true);
+        });
+    });
+
+    describe("validateToken", () => {
+        let token: string;
+
+        beforeEach(async () => {
+            const regResult = await service.register(
+                "test@example.com",
+                "password123",
+            );
+            if (regResult.success) {
+                await service.verifyEmail(regResult.verificationToken);
+            }
+
+            const loginResult = await service.login(
+                "test@example.com",
+                "password123",
+                "cookie",
+            );
+            if (loginResult.success) {
+                token = loginResult.token;
+            }
+        });
+
+        it("returns authenticated for valid token", async () => {
+            const result = await service.validateToken(token);
+
+            assert.equal(result.authenticated, true);
+            if (result.authenticated) {
+                assert.equal(result.user.email, "test@example.com");
+                assert.notEqual(result.session, null);
+            }
+        });
+
+        it("returns unauthenticated for invalid token", async () => {
+            const result = await service.validateToken("invalid-token");
+
+            assert.equal(result.authenticated, false);
+            assert.equal(result.user.isAnonymous(), true);
+            assert.equal(result.session, null);
+        });
+    });
+
+    describe("logout", () => {
+        it("invalidates the session", async () => {
+            const regResult = await service.register(
+                "test@example.com",
+                "password123",
+            );
+            if (regResult.success) {
+                await service.verifyEmail(regResult.verificationToken);
+            }
+
+            const loginResult = await service.login(
+                "test@example.com",
+                "password123",
+                "cookie",
+            );
+            assert.equal(loginResult.success, true);
+            if (!loginResult.success) return;
+
+            const token = loginResult.token;
+
+            // Token should be valid before logout
+            const beforeLogout = await service.validateToken(token);
+            assert.equal(beforeLogout.authenticated, true);
+
+            // Logout
+            await service.logout(token);
+
+            // Token should be invalid after logout
+            const afterLogout = await service.validateToken(token);
+            assert.equal(afterLogout.authenticated, false);
+        });
+    });
+
+    describe("logoutAllSessions", () => {
+        it("invalidates all user sessions", async () => {
+            const regResult = await service.register(
+                "test@example.com",
+                "password123",
+            );
+            if (regResult.success) {
+                await service.verifyEmail(regResult.verificationToken);
+            }
+
+            // Create multiple sessions
+            const login1 = await service.login(
+                "test@example.com",
+                "password123",
+                "cookie",
+            );
+            const login2 = await service.login(
+                "test@example.com",
+                "password123",
+                "bearer",
+            );
+
+            assert.equal(login1.success, true);
+            assert.equal(login2.success, true);
+            if (!login1.success || !login2.success) return;
+
+            // Both should be valid
+            const before1 = await service.validateToken(login1.token);
+            const before2 = await service.validateToken(login2.token);
+            assert.equal(before1.authenticated, true);
+            assert.equal(before2.authenticated, true);
+
+            // Logout all
+            const user = await store.getUserByEmail("test@example.com");
+            const count = await service.logoutAllSessions(user!.id);
+            assert.equal(count, 2);
+
+            // Both should be invalid
+            const after1 = await service.validateToken(login1.token);
+            const after2 = await service.validateToken(login2.token);
+            assert.equal(after1.authenticated, false);
+            assert.equal(after2.authenticated, false);
+        });
+    });
+
+    describe("verifyEmail", () => {
+        it("activates user with valid token", async () => {
+            const regResult = await service.register(
+                "test@example.com",
+                "password123",
+            );
+            assert.equal(regResult.success, true);
+            if (!regResult.success) return;
+
+            const result = await service.verifyEmail(
+                regResult.verificationToken,
+            );
+            assert.equal(result.success, true);
+
+            // User should now be active and can login
+            const loginResult = await service.login(
+                "test@example.com",
+                "password123",
+                "cookie",
+            );
+            assert.equal(loginResult.success, true);
+        });
+
+        it("fails with invalid token", async () => {
+            const result = await service.verifyEmail("invalid-token");
+
+            assert.equal(result.success, false);
+            if (!result.success) {
+                assert.equal(
+                    result.error,
+                    "Invalid or expired verification token",
+                );
+            }
+        });
+
+        it("fails when token already used", async () => {
+            const regResult = await service.register(
+                "test@example.com",
+                "password123",
+            );
+            assert.equal(regResult.success, true);
+            if (!regResult.success) return;
+
+            // First verification succeeds
+            const result1 = await service.verifyEmail(
+                regResult.verificationToken,
+            );
+            assert.equal(result1.success, true);
+
+            // Second verification fails (token deleted)
+            const result2 = await service.verifyEmail(
+                regResult.verificationToken,
+            );
+            assert.equal(result2.success, false);
+        });
+    });
+
+    describe("createPasswordResetToken", () => {
+        it("returns token for existing user", async () => {
+            const regResult = await service.register(
+                "test@example.com",
+                "password123",
+            );
+            assert.equal(regResult.success, true);
+
+            const result =
+                await service.createPasswordResetToken("test@example.com");
+            assert.notEqual(result, null);
+            assert.ok(result!.token.length > 0);
+        });
+
+        it("returns null for unknown email", async () => {
+            const result = await service.createPasswordResetToken(
+                "unknown@example.com",
+            );
+            assert.equal(result, null);
+        });
+    });
+
+    describe("resetPassword", () => {
+        it("changes password with valid token", async () => {
+            const regResult = await service.register(
+                "test@example.com",
+                "oldpassword",
+            );
+            if (regResult.success) {
+                await service.verifyEmail(regResult.verificationToken);
+            }
+
+            const resetToken =
+                await service.createPasswordResetToken("test@example.com");
+            assert.notEqual(resetToken, null);
+
+            const result = await service.resetPassword(
+                resetToken!.token,
+                "newpassword",
+            );
+            assert.equal(result.success, true);
+
+            // Old password should no longer work
+            const loginOld = await service.login(
+                "test@example.com",
+                "oldpassword",
+                "cookie",
+            );
+            assert.equal(loginOld.success, false);
+
+            // New password should work
+            const loginNew = await service.login(
+                "test@example.com",
+                "newpassword",
+                "cookie",
+            );
+            assert.equal(loginNew.success, true);
+        });
+
+        it("fails with invalid token", async () => {
+            const result = await service.resetPassword(
+                "invalid-token",
+                "newpassword",
+            );
+
+            assert.equal(result.success, false);
+            if (!result.success) {
+                assert.equal(result.error, "Invalid or expired reset token");
+            }
+        });
+
+        it("invalidates all existing sessions", async () => {
+            const regResult = await service.register(
+                "test@example.com",
+                "password123",
+            );
+            if (regResult.success) {
+                await service.verifyEmail(regResult.verificationToken);
+            }
+
+            // Create a session
+            const loginResult = await service.login(
+                "test@example.com",
+                "password123",
+                "cookie",
+            );
+            assert.equal(loginResult.success, true);
+            if (!loginResult.success) return;
+
+            const sessionToken = loginResult.token;
+
+            // Reset password
+            const resetToken =
+                await service.createPasswordResetToken("test@example.com");
+            await service.resetPassword(resetToken!.token, "newpassword");
+
+            // Old session should be invalid
+            const validateResult = await service.validateToken(sessionToken);
+            assert.equal(validateResult.authenticated, false);
+        });
+    });
+});

backend/diachron/auth/store.spec.ts

@@ -0,0 +1,321 @@
+// Tests for auth/store.ts (InMemoryAuthStore)
+// Pure unit tests - no database needed
+
+import assert from "node:assert/strict";
+import { after, before, beforeEach, describe, it } from "node:test";
+import type { UserId } from "../user";
+import { InMemoryAuthStore } from "./store";
+import { hashToken } from "./token";
+import type { TokenId } from "./types";
+
+describe("InMemoryAuthStore", () => {
+    let store: InMemoryAuthStore;
+
+    beforeEach(() => {
+        store = new InMemoryAuthStore();
+    });
+
+    describe("createUser", () => {
+        it("creates a user with pending status", async () => {
+            const user = await store.createUser({
+                email: "test@example.com",
+                passwordHash: "hash123",
+                displayName: "Test User",
+            });
+
+            assert.equal(user.email, "test@example.com");
+            assert.equal(user.displayName, "Test User");
+            assert.equal(user.status, "pending");
+        });
+
+        it("creates a user without displayName", async () => {
+            const user = await store.createUser({
+                email: "test@example.com",
+                passwordHash: "hash123",
+            });
+
+            assert.equal(user.email, "test@example.com");
+            assert.equal(user.displayName, undefined);
+        });
+
+        it("generates a unique id", async () => {
+            const user1 = await store.createUser({
+                email: "test1@example.com",
+                passwordHash: "hash123",
+            });
+            const user2 = await store.createUser({
+                email: "test2@example.com",
+                passwordHash: "hash456",
+            });
+
+            assert.notEqual(user1.id, user2.id);
+        });
+    });
+
+    describe("getUserByEmail", () => {
+        it("returns user when found", async () => {
+            await store.createUser({
+                email: "test@example.com",
+                passwordHash: "hash123",
+            });
+
+            const user = await store.getUserByEmail("test@example.com");
+            assert.notEqual(user, null);
+            assert.equal(user!.email, "test@example.com");
+        });
+
+        it("is case-insensitive", async () => {
+            await store.createUser({
+                email: "Test@Example.COM",
+                passwordHash: "hash123",
+            });
+
+            const user = await store.getUserByEmail("test@example.com");
+            assert.notEqual(user, null);
+        });
+
+        it("returns null when not found", async () => {
+            const user = await store.getUserByEmail("notfound@example.com");
+            assert.equal(user, null);
+        });
+    });
+
+    describe("getUserById", () => {
+        it("returns user when found", async () => {
+            const created = await store.createUser({
+                email: "test@example.com",
+                passwordHash: "hash123",
+            });
+
+            const user = await store.getUserById(created.id);
+            assert.notEqual(user, null);
+            assert.equal(user!.id, created.id);
+        });
+
+        it("returns null when not found", async () => {
+            const user = await store.getUserById("nonexistent" as UserId);
+            assert.equal(user, null);
+        });
+    });
+
+    describe("getUserPasswordHash", () => {
+        it("returns hash when found", async () => {
+            const user = await store.createUser({
+                email: "test@example.com",
+                passwordHash: "hash123",
+            });
+
+            const hash = await store.getUserPasswordHash(user.id);
+            assert.equal(hash, "hash123");
+        });
+
+        it("returns null when not found", async () => {
+            const hash = await store.getUserPasswordHash(
+                "nonexistent" as UserId,
+            );
+            assert.equal(hash, null);
+        });
+    });
+
+    describe("setUserPassword", () => {
+        it("updates password hash", async () => {
+            const user = await store.createUser({
+                email: "test@example.com",
+                passwordHash: "oldhash",
+            });
+
+            await store.setUserPassword(user.id, "newhash");
+
+            const hash = await store.getUserPasswordHash(user.id);
+            assert.equal(hash, "newhash");
+        });
+    });
+
+    describe("updateUserEmailVerified", () => {
+        it("sets user status to active", async () => {
+            const created = await store.createUser({
+                email: "test@example.com",
+                passwordHash: "hash123",
+            });
+            assert.equal(created.status, "pending");
+
+            await store.updateUserEmailVerified(created.id);
+
+            const user = await store.getUserById(created.id);
+            assert.equal(user!.status, "active");
+        });
+    });
+
+    describe("createSession", () => {
+        it("creates a session with token", async () => {
+            const user = await store.createUser({
+                email: "test@example.com",
+                passwordHash: "hash123",
+            });
+
+            const { token, session } = await store.createSession({
+                userId: user.id,
+                tokenType: "session",
+                authMethod: "cookie",
+                expiresAt: new Date(Date.now() + 3600000),
+            });
+
+            assert.ok(token.length > 0);
+            assert.equal(session.userId, user.id);
+            assert.equal(session.tokenType, "session");
+            assert.equal(session.authMethod, "cookie");
+        });
+
+        it("stores metadata", async () => {
+            const user = await store.createUser({
+                email: "test@example.com",
+                passwordHash: "hash123",
+            });
+
+            const { session } = await store.createSession({
+                userId: user.id,
+                tokenType: "session",
+                authMethod: "cookie",
+                expiresAt: new Date(Date.now() + 3600000),
+                userAgent: "Mozilla/5.0",
+                ipAddress: "127.0.0.1",
+            });
+
+            assert.equal(session.userAgent, "Mozilla/5.0");
+            assert.equal(session.ipAddress, "127.0.0.1");
+        });
+    });
+
+    describe("getSession", () => {
+        it("returns session when found and not expired", async () => {
+            const user = await store.createUser({
+                email: "test@example.com",
+                passwordHash: "hash123",
+            });
+
+            const { token } = await store.createSession({
+                userId: user.id,
+                tokenType: "session",
+                authMethod: "cookie",
+                expiresAt: new Date(Date.now() + 3600000), // 1 hour from now
+            });
+
+            const tokenId = hashToken(token) as TokenId;
+            const session = await store.getSession(tokenId);
+            assert.notEqual(session, null);
+            assert.equal(session!.userId, user.id);
+        });
+
+        it("returns null for expired session", async () => {
+            const user = await store.createUser({
+                email: "test@example.com",
+                passwordHash: "hash123",
+            });
+
+            const { token } = await store.createSession({
+                userId: user.id,
+                tokenType: "session",
+                authMethod: "cookie",
+                expiresAt: new Date(Date.now() - 1000), // Expired 1 second ago
+            });
+
+            const tokenId = hashToken(token) as TokenId;
+            const session = await store.getSession(tokenId);
+            assert.equal(session, null);
+        });
+
+        it("returns null for nonexistent session", async () => {
+            const session = await store.getSession("nonexistent" as TokenId);
+            assert.equal(session, null);
+        });
+    });
+
+    describe("deleteSession", () => {
+        it("removes the session", async () => {
+            const user = await store.createUser({
+                email: "test@example.com",
+                passwordHash: "hash123",
+            });
+
+            const { token } = await store.createSession({
+                userId: user.id,
+                tokenType: "session",
+                authMethod: "cookie",
+                expiresAt: new Date(Date.now() + 3600000),
+            });
+
+            const tokenId = hashToken(token) as TokenId;
+            await store.deleteSession(tokenId);
+
+            const session = await store.getSession(tokenId);
+            assert.equal(session, null);
+        });
+    });
+
+    describe("deleteUserSessions", () => {
+        it("removes all sessions for user", async () => {
+            const user = await store.createUser({
+                email: "test@example.com",
+                passwordHash: "hash123",
+            });
+
+            const { token: token1 } = await store.createSession({
+                userId: user.id,
+                tokenType: "session",
+                authMethod: "cookie",
+                expiresAt: new Date(Date.now() + 3600000),
+            });
+
+            const { token: token2 } = await store.createSession({
+                userId: user.id,
+                tokenType: "session",
+                authMethod: "bearer",
+                expiresAt: new Date(Date.now() + 3600000),
+            });
+
+            const count = await store.deleteUserSessions(user.id);
+            assert.equal(count, 2);
+
+            const session1 = await store.getSession(
+                hashToken(token1) as TokenId,
+            );
+            const session2 = await store.getSession(
+                hashToken(token2) as TokenId,
+            );
+            assert.equal(session1, null);
+            assert.equal(session2, null);
+        });
+
+        it("returns 0 when user has no sessions", async () => {
+            const count = await store.deleteUserSessions(
+                "nonexistent" as UserId,
+            );
+            assert.equal(count, 0);
+        });
+    });
+
+    describe("updateLastUsed", () => {
+        it("updates lastUsedAt timestamp", async () => {
+            const user = await store.createUser({
+                email: "test@example.com",
+                passwordHash: "hash123",
+            });
+
+            const { token } = await store.createSession({
+                userId: user.id,
+                tokenType: "session",
+                authMethod: "cookie",
+                expiresAt: new Date(Date.now() + 3600000),
+            });
+
+            const tokenId = hashToken(token) as TokenId;
+            const beforeUpdate = await store.getSession(tokenId);
+            assert.equal(beforeUpdate!.lastUsedAt, undefined);
+
+            await store.updateLastUsed(tokenId);
+
+            const afterUpdate = await store.getSession(tokenId);
+            assert.ok(afterUpdate!.lastUsedAt instanceof Date);
+        });
+    });
+});

backend/diachron/auth/token.spec.ts

@@ -0,0 +1,94 @@
+// Tests for auth/token.ts
+// Pure unit tests - no database needed
+
+import assert from "node:assert/strict";
+import { describe, it } from "node:test";
+import {
+    generateToken,
+    hashToken,
+    parseAuthorizationHeader,
+    SESSION_COOKIE_NAME,
+} from "./token";
+
+describe("token", () => {
+    describe("generateToken", () => {
+        it("generates a non-empty string", () => {
+            const token = generateToken();
+            assert.equal(typeof token, "string");
+            assert.ok(token.length > 0);
+        });
+
+        it("generates unique tokens", () => {
+            const tokens = new Set<string>();
+            for (let i = 0; i < 100; i++) {
+                tokens.add(generateToken());
+            }
+            assert.equal(tokens.size, 100);
+        });
+
+        it("generates base64url encoded tokens", () => {
+            const token = generateToken();
+            // base64url uses A-Z, a-z, 0-9, -, _
+            assert.match(token, /^[A-Za-z0-9_-]+$/);
+        });
+    });
+
+    describe("hashToken", () => {
+        it("returns a hex string", () => {
+            const hash = hashToken("test-token");
+            assert.match(hash, /^[a-f0-9]+$/);
+        });
+
+        it("returns consistent hash for same input", () => {
+            const hash1 = hashToken("test-token");
+            const hash2 = hashToken("test-token");
+            assert.equal(hash1, hash2);
+        });
+
+        it("returns different hash for different input", () => {
+            const hash1 = hashToken("token-1");
+            const hash2 = hashToken("token-2");
+            assert.notEqual(hash1, hash2);
+        });
+
+        it("returns 64 character hash (SHA-256)", () => {
+            const hash = hashToken("test-token");
+            assert.equal(hash.length, 64);
+        });
+    });
+
+    describe("parseAuthorizationHeader", () => {
+        it("returns null for undefined header", () => {
+            assert.equal(parseAuthorizationHeader(undefined), null);
+        });
+
+        it("returns null for empty string", () => {
+            assert.equal(parseAuthorizationHeader(""), null);
+        });
+
+        it("returns null for non-bearer auth", () => {
+            assert.equal(parseAuthorizationHeader("Basic abc123"), null);
+        });
+
+        it("returns null for malformed header", () => {
+            assert.equal(parseAuthorizationHeader("Bearer"), null);
+            assert.equal(parseAuthorizationHeader("Bearer token extra"), null);
+        });
+
+        it("extracts token from valid bearer header", () => {
+            assert.equal(parseAuthorizationHeader("Bearer abc123"), "abc123");
+        });
+
+        it("is case-insensitive for Bearer keyword", () => {
+            assert.equal(parseAuthorizationHeader("bearer abc123"), "abc123");
+            assert.equal(parseAuthorizationHeader("BEARER abc123"), "abc123");
+        });
+    });
+
+    describe("SESSION_COOKIE_NAME", () => {
+        it("is defined", () => {
+            assert.equal(typeof SESSION_COOKIE_NAME, "string");
+            assert.ok(SESSION_COOKIE_NAME.length > 0);
+        });
+    });
+});

backend/diachron/auth/types.spec.ts

@@ -0,0 +1,253 @@
+// Tests for auth/types.ts
+// Pure unit tests - no database needed
+
+import assert from "node:assert/strict";
+import { describe, it } from "node:test";
+import { z } from "zod";
+import { AuthenticatedUser, anonymousUser } from "../user";
+import {
+    authMethodParser,
+    forgotPasswordInputParser,
+    loginInputParser,
+    registerInputParser,
+    resetPasswordInputParser,
+    Session,
+    sessionDataParser,
+    tokenLifetimes,
+    tokenTypeParser,
+} from "./types";
+
+describe("auth/types", () => {
+    describe("tokenTypeParser", () => {
+        it("accepts valid token types", () => {
+            assert.equal(tokenTypeParser.parse("session"), "session");
+            assert.equal(
+                tokenTypeParser.parse("password_reset"),
+                "password_reset",
+            );
+            assert.equal(tokenTypeParser.parse("email_verify"), "email_verify");
+        });
+
+        it("rejects invalid token types", () => {
+            assert.throws(() => tokenTypeParser.parse("invalid"));
+        });
+    });
+
+    describe("authMethodParser", () => {
+        it("accepts valid auth methods", () => {
+            assert.equal(authMethodParser.parse("cookie"), "cookie");
+            assert.equal(authMethodParser.parse("bearer"), "bearer");
+        });
+
+        it("rejects invalid auth methods", () => {
+            assert.throws(() => authMethodParser.parse("basic"));
+        });
+    });
+
+    describe("sessionDataParser", () => {
+        it("accepts valid session data", () => {
+            const data = {
+                tokenId: "abc123",
+                userId: "user-1",
+                tokenType: "session",
+                authMethod: "cookie",
+                createdAt: new Date(),
+                expiresAt: new Date(),
+            };
+            const result = sessionDataParser.parse(data);
+            assert.equal(result.tokenId, "abc123");
+            assert.equal(result.userId, "user-1");
+        });
+
+        it("coerces date strings to dates", () => {
+            const data = {
+                tokenId: "abc123",
+                userId: "user-1",
+                tokenType: "session",
+                authMethod: "cookie",
+                createdAt: "2025-01-01T00:00:00Z",
+                expiresAt: "2025-01-02T00:00:00Z",
+            };
+            const result = sessionDataParser.parse(data);
+            assert.ok(result.createdAt instanceof Date);
+            assert.ok(result.expiresAt instanceof Date);
+        });
+
+        it("accepts optional fields", () => {
+            const data = {
+                tokenId: "abc123",
+                userId: "user-1",
+                tokenType: "session",
+                authMethod: "cookie",
+                createdAt: new Date(),
+                expiresAt: new Date(),
+                lastUsedAt: new Date(),
+                userAgent: "Mozilla/5.0",
+                ipAddress: "127.0.0.1",
+                isUsed: true,
+            };
+            const result = sessionDataParser.parse(data);
+            assert.equal(result.userAgent, "Mozilla/5.0");
+            assert.equal(result.ipAddress, "127.0.0.1");
+            assert.equal(result.isUsed, true);
+        });
+    });
+
+    describe("loginInputParser", () => {
+        it("accepts valid login input", () => {
+            const result = loginInputParser.parse({
+                email: "test@example.com",
+                password: "secret",
+            });
+            assert.equal(result.email, "test@example.com");
+            assert.equal(result.password, "secret");
+        });
+
+        it("rejects invalid email", () => {
+            assert.throws(() =>
+                loginInputParser.parse({
+                    email: "not-an-email",
+                    password: "secret",
+                }),
+            );
+        });
+
+        it("rejects empty password", () => {
+            assert.throws(() =>
+                loginInputParser.parse({
+                    email: "test@example.com",
+                    password: "",
+                }),
+            );
+        });
+    });
+
+    describe("registerInputParser", () => {
+        it("accepts valid registration input", () => {
+            const result = registerInputParser.parse({
+                email: "test@example.com",
+                password: "password123",
+                displayName: "Test User",
+            });
+            assert.equal(result.email, "test@example.com");
+            assert.equal(result.password, "password123");
+            assert.equal(result.displayName, "Test User");
+        });
+
+        it("accepts registration without displayName", () => {
+            const result = registerInputParser.parse({
+                email: "test@example.com",
+                password: "password123",
+            });
+            assert.equal(result.displayName, undefined);
+        });
+
+        it("rejects password shorter than 8 characters", () => {
+            assert.throws(() =>
+                registerInputParser.parse({
+                    email: "test@example.com",
+                    password: "short",
+                }),
+            );
+        });
+    });
+
+    describe("forgotPasswordInputParser", () => {
+        it("accepts valid email", () => {
+            const result = forgotPasswordInputParser.parse({
+                email: "test@example.com",
+            });
+            assert.equal(result.email, "test@example.com");
+        });
+
+        it("rejects invalid email", () => {
+            assert.throws(() =>
+                forgotPasswordInputParser.parse({
+                    email: "invalid",
+                }),
+            );
+        });
+    });
+
+    describe("resetPasswordInputParser", () => {
+        it("accepts valid reset input", () => {
+            const result = resetPasswordInputParser.parse({
+                token: "abc123",
+                password: "newpassword",
+            });
+            assert.equal(result.token, "abc123");
+            assert.equal(result.password, "newpassword");
+        });
+
+        it("rejects empty token", () => {
+            assert.throws(() =>
+                resetPasswordInputParser.parse({
+                    token: "",
+                    password: "newpassword",
+                }),
+            );
+        });
+
+        it("rejects password shorter than 8 characters", () => {
+            assert.throws(() =>
+                resetPasswordInputParser.parse({
+                    token: "abc123",
+                    password: "short",
+                }),
+            );
+        });
+    });
+
+    describe("tokenLifetimes", () => {
+        it("defines session lifetime", () => {
+            assert.ok(tokenLifetimes.session > 0);
+            // 30 days in ms
+            assert.equal(tokenLifetimes.session, 30 * 24 * 60 * 60 * 1000);
+        });
+
+        it("defines password_reset lifetime", () => {
+            assert.ok(tokenLifetimes.password_reset > 0);
+            // 1 hour in ms
+            assert.equal(tokenLifetimes.password_reset, 1 * 60 * 60 * 1000);
+        });
+
+        it("defines email_verify lifetime", () => {
+            assert.ok(tokenLifetimes.email_verify > 0);
+            // 24 hours in ms
+            assert.equal(tokenLifetimes.email_verify, 24 * 60 * 60 * 1000);
+        });
+    });
+
+    describe("Session", () => {
+        it("wraps authenticated session", () => {
+            const user = AuthenticatedUser.create("test@example.com", {
+                id: "user-1",
+            });
+            const sessionData = {
+                tokenId: "token-1",
+                userId: "user-1",
+                tokenType: "session" as const,
+                authMethod: "cookie" as const,
+                createdAt: new Date(),
+                expiresAt: new Date(),
+            };
+            const session = new Session(sessionData, user);
+
+            assert.equal(session.isAuthenticated(), true);
+            assert.equal(session.getUser(), user);
+            assert.equal(session.getData(), sessionData);
+            assert.equal(session.tokenId, "token-1");
+            assert.equal(session.userId, "user-1");
+        });
+
+        it("wraps anonymous session", () => {
+            const session = new Session(null, anonymousUser);
+
+            assert.equal(session.isAuthenticated(), false);
+            assert.equal(session.getUser(), anonymousUser);
+            assert.equal(session.getData(), null);
+            assert.equal(session.tokenId, undefined);
+            assert.equal(session.userId, undefined);
+        });
+    });
+});

backend/diachron/basic/login.spec.ts

@@ -0,0 +1,24 @@
+// Tests for basic/login.ts
+// These tests verify the route structure and export
+
+import assert from "node:assert/strict";
+import { describe, it } from "node:test";
+import { loginRoute } from "./login";
+
+describe("basic/login", () => {
+    describe("loginRoute", () => {
+        it("has correct path", () => {
+            assert.equal(loginRoute.path, "/login");
+        });
+
+        it("handles GET and POST methods", () => {
+            assert.ok(loginRoute.methods.includes("GET"));
+            assert.ok(loginRoute.methods.includes("POST"));
+            assert.equal(loginRoute.methods.length, 2);
+        });
+
+        it("has a handler function", () => {
+            assert.equal(typeof loginRoute.handler, "function");
+        });
+    });
+});

backend/diachron/basic/logout.spec.ts

@@ -0,0 +1,24 @@
+// Tests for basic/logout.ts
+// These tests verify the route structure and export
+
+import assert from "node:assert/strict";
+import { describe, it } from "node:test";
+import { logoutRoute } from "./logout";
+
+describe("basic/logout", () => {
+    describe("logoutRoute", () => {
+        it("has correct path", () => {
+            assert.equal(logoutRoute.path, "/logout");
+        });
+
+        it("handles GET and POST methods", () => {
+            assert.ok(logoutRoute.methods.includes("GET"));
+            assert.ok(logoutRoute.methods.includes("POST"));
+            assert.equal(logoutRoute.methods.length, 2);
+        });
+
+        it("has a handler function", () => {
+            assert.equal(typeof logoutRoute.handler, "function");
+        });
+    });
+});

backend/diachron/basic/routes.spec.ts

@@ -0,0 +1,73 @@
+// Tests for basic/routes.ts
+// These tests verify the route structure and exports
+
+import assert from "node:assert/strict";
+import { describe, it } from "node:test";
+import { routes } from "./routes";
+
+describe("basic/routes", () => {
+    describe("routes object", () => {
+        it("exports routes as an object", () => {
+            assert.equal(typeof routes, "object");
+        });
+
+        it("contains hello route", () => {
+            assert.ok("hello" in routes);
+            assert.equal(routes.hello.path, "/hello");
+            assert.ok(routes.hello.methods.includes("GET"));
+        });
+
+        it("contains home route", () => {
+            assert.ok("home" in routes);
+            assert.equal(routes.home.path, "/");
+            assert.ok(routes.home.methods.includes("GET"));
+        });
+
+        it("contains login route", () => {
+            assert.ok("login" in routes);
+            assert.equal(routes.login.path, "/login");
+        });
+
+        it("contains logout route", () => {
+            assert.ok("logout" in routes);
+            assert.equal(routes.logout.path, "/logout");
+        });
+
+        it("all routes have handlers", () => {
+            for (const [name, route] of Object.entries(routes)) {
+                assert.equal(
+                    typeof route.handler,
+                    "function",
+                    `Route ${name} should have a handler function`,
+                );
+            }
+        });
+
+        it("all routes have methods array", () => {
+            for (const [name, route] of Object.entries(routes)) {
+                assert.ok(
+                    Array.isArray(route.methods),
+                    `Route ${name} should have methods array`,
+                );
+                assert.ok(
+                    route.methods.length > 0,
+                    `Route ${name} should have at least one method`,
+                );
+            }
+        });
+
+        it("all routes have path string", () => {
+            for (const [name, route] of Object.entries(routes)) {
+                assert.equal(
+                    typeof route.path,
+                    "string",
+                    `Route ${name} should have a path string`,
+                );
+                assert.ok(
+                    route.path.startsWith("/"),
+                    `Route ${name} path should start with /`,
+                );
+            }
+        });
+    });
+});

backend/diachron/basic/routes.ts

@@ -1,4 +1,5 @@
 import { DateTime } from "ts-luxon";
+import { get, User } from "../hydrators/user";
 import { request } from "../request";
 import { html, render } from "../request/util";
 import type { Call, Result, Route } from "../types";
@@ -9,9 +10,16 @@ const routes: Record<string, Route> = {
     hello: {
         path: "/hello",
         methods: ["GET"],
-        handler: async (_call: Call): Promise<Result> => {
+        handler: async (call: Call): Promise<Result> => {
             const now = DateTime.now();
-            const c = await render("basic/hello", { now });
+            const args: {now: DateTime,greeting?: string} = {now};
+
+            if (call.path !== '/hello') {
+                const greeting = call. path.replaceAll('/','').replaceAll('-', ' ')
+                args.greeting = greeting;
+            }
+
+            const c = await render("basic/hello", args);
 
             return html(c);
         },
@@ -23,11 +31,18 @@ const routes: Record<string, Route> = {
             const _auth = request.auth;
             const me = request.session.getUser();
 
-            const email = me.toString();
+            const id = me.id;
+            console.log(`*** id: ${id}`);
+
+            const u = await get(id);
+
+            const email = u?.email || "anonymous@example.com";
+            const name = u?.display_name || "anonymous";
             const showLogin = me.isAnonymous();
             const showLogout = !me.isAnonymous();
 
             const c = await render("basic/home", {
+                name,
                 email,
                 showLogin,
                 showLogout,

backend/diachron/core/index.ts

@@ -1,5 +1,6 @@
 import nunjucks from "nunjucks";
 import { db, migrate, migrationStatus } from "../database";
+import { formatError, formatErrorHtml } from "../errors";
 import { getLogs, log } from "../logging";
 
 // FIXME: This doesn't belong here; move it somewhere else.
@@ -40,6 +41,7 @@ const misc = {
 const core = {
     conf,
     database,
+    errors: { formatError, formatErrorHtml },
     logging,
     misc,
     random,

backend/diachron/database.spec.ts

@@ -0,0 +1,285 @@
+// Tests for database.ts
+// Requires test PostgreSQL: docker compose -f docker-compose.test.yml up -d
+
+import assert from "node:assert/strict";
+import { after, before, beforeEach, describe, it } from "node:test";
+import {
+    connectionConfig,
+    db,
+    migrate,
+    migrationStatus,
+    PostgresAuthStore,
+    pool,
+    raw,
+    rawPool,
+} from "./database";
+import type { UserId } from "./user";
+
+describe("database", () => {
+    before(async () => {
+        // Run migrations to set up schema
+        await migrate();
+    });
+
+    after(async () => {
+        await pool.end();
+    });
+
+    describe("connectionConfig", () => {
+        it("has required fields", () => {
+            assert.ok("host" in connectionConfig);
+            assert.ok("port" in connectionConfig);
+            assert.ok("user" in connectionConfig);
+            assert.ok("password" in connectionConfig);
+            assert.ok("database" in connectionConfig);
+        });
+
+        it("port is a number", () => {
+            assert.equal(typeof connectionConfig.port, "number");
+        });
+    });
+
+    describe("raw", () => {
+        it("executes raw SQL queries", async () => {
+            const result = await raw<{ one: number }>("SELECT 1 as one");
+            assert.equal(result.length, 1);
+            assert.equal(result[0].one, 1);
+        });
+
+        it("supports parameterized queries", async () => {
+            const result = await raw<{ sum: number }>(
+                "SELECT $1::int + $2::int as sum",
+                [2, 3],
+            );
+            assert.equal(result[0].sum, 5);
+        });
+    });
+
+    describe("db (Kysely instance)", () => {
+        it("can execute SELECT queries", async () => {
+            const result = await db
+                .selectFrom("users")
+                .select("id")
+                .limit(1)
+                .execute();
+
+            // May be empty, just verify it runs
+            assert.ok(Array.isArray(result));
+        });
+    });
+
+    describe("rawPool", () => {
+        it("is a pg Pool instance", () => {
+            assert.ok(rawPool.query !== undefined);
+        });
+
+        it("can execute queries", async () => {
+            const result = await rawPool.query("SELECT 1 as one");
+            assert.equal(result.rows[0].one, 1);
+        });
+    });
+
+    describe("migrate", () => {
+        it("runs without error when migrations are up to date", async () => {
+            // Should not throw
+            await migrate();
+        });
+    });
+
+    describe("migrationStatus", () => {
+        it("returns applied and pending arrays", async () => {
+            const status = await migrationStatus();
+
+            assert.ok(Array.isArray(status.applied));
+            assert.ok(Array.isArray(status.pending));
+        });
+
+        it("shows framework migrations as applied", async () => {
+            const status = await migrationStatus();
+
+            // At least the users migration should be applied
+            const hasUsersMigration = status.applied.some((m) =>
+                m.includes("users"),
+            );
+            assert.ok(hasUsersMigration);
+        });
+    });
+
+    describe("PostgresAuthStore", () => {
+        let store: PostgresAuthStore;
+
+        before(() => {
+            store = new PostgresAuthStore();
+        });
+
+        beforeEach(async () => {
+            // Clean up test data before each test
+            await rawPool.query("DELETE FROM sessions");
+            await rawPool.query("DELETE FROM user_credentials");
+            await rawPool.query("DELETE FROM user_emails");
+            await rawPool.query("DELETE FROM users");
+        });
+
+        describe("createUser", () => {
+            it("creates a user with pending status", async () => {
+                const user = await store.createUser({
+                    email: "test@example.com",
+                    passwordHash: "hash123",
+                    displayName: "Test User",
+                });
+
+                assert.equal(user.email, "test@example.com");
+                assert.equal(user.displayName, "Test User");
+                assert.equal(user.status, "pending");
+            });
+
+            it("stores the password hash", async () => {
+                const user = await store.createUser({
+                    email: "test@example.com",
+                    passwordHash: "secrethash",
+                });
+
+                const hash = await store.getUserPasswordHash(user.id);
+                assert.equal(hash, "secrethash");
+            });
+        });
+
+        describe("getUserByEmail", () => {
+            it("returns user when found", async () => {
+                await store.createUser({
+                    email: "find@example.com",
+                    passwordHash: "hash",
+                });
+
+                const user = await store.getUserByEmail("find@example.com");
+                assert.notEqual(user, null);
+                assert.equal(user!.email, "find@example.com");
+            });
+
+            it("is case-insensitive", async () => {
+                await store.createUser({
+                    email: "UPPER@EXAMPLE.COM",
+                    passwordHash: "hash",
+                });
+
+                const user = await store.getUserByEmail("upper@example.com");
+                assert.notEqual(user, null);
+            });
+
+            it("returns null when not found", async () => {
+                const user = await store.getUserByEmail("notfound@example.com");
+                assert.equal(user, null);
+            });
+        });
+
+        describe("getUserById", () => {
+            it("returns user when found", async () => {
+                const created = await store.createUser({
+                    email: "test@example.com",
+                    passwordHash: "hash",
+                });
+
+                const user = await store.getUserById(created.id);
+                assert.notEqual(user, null);
+                assert.equal(user!.id, created.id);
+            });
+
+            it("returns null when not found", async () => {
+                const user = await store.getUserById(
+                    "00000000-0000-0000-0000-000000000000" as UserId,
+                );
+                assert.equal(user, null);
+            });
+        });
+
+        describe("setUserPassword", () => {
+            it("updates the password hash", async () => {
+                const user = await store.createUser({
+                    email: "test@example.com",
+                    passwordHash: "oldhash",
+                });
+
+                await store.setUserPassword(user.id, "newhash");
+
+                const hash = await store.getUserPasswordHash(user.id);
+                assert.equal(hash, "newhash");
+            });
+        });
+
+        describe("updateUserEmailVerified", () => {
+            it("sets user status to active", async () => {
+                const created = await store.createUser({
+                    email: "test@example.com",
+                    passwordHash: "hash",
+                });
+                assert.equal(created.status, "pending");
+
+                await store.updateUserEmailVerified(created.id);
+
+                const user = await store.getUserById(created.id);
+                assert.equal(user!.status, "active");
+            });
+        });
+
+        describe("session operations", () => {
+            let userId: UserId;
+
+            beforeEach(async () => {
+                const user = await store.createUser({
+                    email: "session@example.com",
+                    passwordHash: "hash",
+                });
+                userId = user.id;
+            });
+
+            it("creates and retrieves sessions", async () => {
+                const { token, session } = await store.createSession({
+                    userId,
+                    tokenType: "session",
+                    authMethod: "cookie",
+                    expiresAt: new Date(Date.now() + 3600000),
+                });
+
+                assert.ok(token.length > 0);
+                assert.equal(session.userId, userId);
+                assert.equal(session.tokenType, "session");
+            });
+
+            it("deletes sessions", async () => {
+                const { session } = await store.createSession({
+                    userId,
+                    tokenType: "session",
+                    authMethod: "cookie",
+                    expiresAt: new Date(Date.now() + 3600000),
+                });
+
+                await store.deleteSession(session.tokenId as any);
+
+                // Session should be soft-deleted (revoked)
+                const retrieved = await store.getSession(
+                    session.tokenId as any,
+                );
+                assert.equal(retrieved, null);
+            });
+
+            it("deletes all user sessions", async () => {
+                await store.createSession({
+                    userId,
+                    tokenType: "session",
+                    authMethod: "cookie",
+                    expiresAt: new Date(Date.now() + 3600000),
+                });
+
+                await store.createSession({
+                    userId,
+                    tokenType: "session",
+                    authMethod: "bearer",
+                    expiresAt: new Date(Date.now() + 3600000),
+                });
+
+                const count = await store.deleteUserSessions(userId);
+                assert.equal(count, 2);
+            });
+        });
+    });
+});

backend/diachron/database.ts

@@ -21,13 +21,13 @@ import type { SessionData, TokenId } from "./auth/types";
 import type { Domain } from "./types";
 import { AuthenticatedUser, type User, type UserId } from "./user";
 
-// Connection configuration
+// Connection configuration (supports environment variable overrides)
 const connectionConfig = {
-    host: "localhost",
-    port: 5432,
-    user: "diachron",
-    password: "diachron",
-    database: "diachron",
+    host: process.env.DB_HOST ?? "localhost",
+    port: Number(process.env.DB_PORT ?? 5432),
+    user: process.env.DB_USER ?? "diachron",
+    password: process.env.DB_PASSWORD ?? "diachron",
+    database: process.env.DB_NAME ?? "diachron",
 };
 
 // Database schema types for Kysely
@@ -113,7 +113,7 @@ async function raw<T = unknown>(
 //
 // Migrations directory: express/migrations/
 
-const FRAMEWORK_MIGRATIONS_DIR = path.join(__dirname, "framework/migrations");
+const FRAMEWORK_MIGRATIONS_DIR = path.join(__dirname, "diachron/migrations");
 const APP_MIGRATIONS_DIR = path.join(__dirname, "migrations");
 const MIGRATIONS_TABLE = "_migrations";
 

backend/diachron/errors.ts

@@ -0,0 +1,229 @@
+// ANSI escape codes
+const bold = "\x1b[1m";
+const red = "\x1b[31m";
+const cyan = "\x1b[36m";
+const dim = "\x1b[2m";
+const reset = "\x1b[0m";
+
+interface ParsedFrame {
+    raw: string;
+    fn: string;
+    file: string;
+    line: string;
+    col: string;
+    isApp: boolean;
+}
+
+const frameRe = /^\s*at\s+(?:(.+?)\s+)?\(?((?:\/|[a-zA-Z]:\\).+?):(\d+):(\d+)\)?$/;
+
+function parseFrame(line: string): ParsedFrame | null {
+    const m = line.match(frameRe);
+    if (!m) return null;
+
+    const fn = m[1] ?? "<anonymous>";
+    const file = m[2];
+    const lineNum = m[3];
+    const col = m[4];
+
+    const isApp =
+        !file.includes("node_modules") && !file.startsWith("node:");
+
+    return { raw: line, fn, file, line: lineNum, col, isApp };
+}
+
+function relativePath(absPath: string): string {
+    const marker = "backend/";
+    const idx = absPath.lastIndexOf(marker);
+    if (idx !== -1) return absPath.slice(idx);
+    return absPath;
+}
+
+function libraryName(file: string): string {
+    const nmIdx = file.indexOf("node_modules/");
+    if (nmIdx === -1) return "node";
+    const after = file.slice(nmIdx + "node_modules/".length);
+    // Handle scoped packages like @scope/pkg
+    if (after.startsWith("@")) {
+        const parts = after.split("/");
+        return `${parts[0]}/${parts[1]}`;
+    }
+    return after.split("/")[0];
+}
+
+interface ParsedError {
+    message: string;
+    frames: ParsedFrame[];
+}
+
+function parseError(error: unknown): ParsedError {
+    if (!(error instanceof Error)) {
+        return { message: String(error), frames: [] };
+    }
+
+    const message = error.message ?? String(error);
+    const stack = error.stack ?? "";
+
+    const lines = stack.split("\n");
+    const frameLines: string[] = [];
+    for (const line of lines) {
+        if (line.trimStart().startsWith("at ")) {
+            frameLines.push(line);
+        }
+    }
+
+    const frames = frameLines
+        .map(parseFrame)
+        .filter((f): f is ParsedFrame => f !== null);
+
+    return { message, frames };
+}
+
+// Group consecutive library frames into collapsed runs
+type FrameGroup =
+    | { kind: "app"; frame: ParsedFrame }
+    | { kind: "lib"; count: number; names: string[] };
+
+function groupFrames(frames: ParsedFrame[]): FrameGroup[] {
+    const groups: FrameGroup[] = [];
+    let i = 0;
+    while (i < frames.length) {
+        if (frames[i].isApp) {
+            groups.push({ kind: "app", frame: frames[i] });
+            i++;
+        } else {
+            const libNames = new Set<string>();
+            let count = 0;
+            while (i < frames.length && !frames[i].isApp) {
+                libNames.add(libraryName(frames[i].file));
+                count++;
+                i++;
+            }
+            groups.push({ kind: "lib", count, names: [...libNames] });
+        }
+    }
+    return groups;
+}
+
+function libSummary(count: number, names: string[]): string {
+    const s = count === 1 ? "" : "s";
+    return `... ${count} internal frame${s} (${names.join(", ")})`;
+}
+
+// --- Console formatting (ANSI) ---
+
+function formatError(error: unknown): string {
+    const { message, frames } = parseError(error);
+    if (frames.length === 0) {
+        return `${bold}${red}ERROR${reset}  ${message}`;
+    }
+
+    const parts: string[] = [];
+    parts.push(`${bold}${red}ERROR${reset}  ${message}`);
+    parts.push("");
+
+    for (const group of groupFrames(frames)) {
+        if (group.kind === "app") {
+            const rel = relativePath(group.frame.file);
+            const loc = `${rel}:${group.frame.line}`;
+            parts.push(
+                `  ${bold}${cyan}${loc.padEnd(24)}${reset}at ${group.frame.fn}`,
+            );
+        } else {
+            parts.push(
+                `  ${dim}${libSummary(group.count, group.names)}${reset}`,
+            );
+        }
+    }
+
+    return parts.join("\n");
+}
+
+// --- HTML formatting (browser) ---
+
+function esc(s: string): string {
+    return s
+        .replace(/&/g, "&amp;")
+        .replace(/</g, "&lt;")
+        .replace(/>/g, "&gt;")
+        .replace(/"/g, "&quot;");
+}
+
+function formatErrorHtml(error: unknown): string {
+    const { message, frames } = parseError(error);
+    const groups = groupFrames(frames);
+
+    let frameRows = "";
+    for (const group of groups) {
+        if (group.kind === "app") {
+            const rel = relativePath(group.frame.file);
+            const loc = `${rel}:${group.frame.line}`;
+            frameRows += `<tr class="app">
+  <td class="loc">${esc(loc)}</td>
+  <td class="fn">at ${esc(group.frame.fn)}</td>
+</tr>\n`;
+        } else {
+            frameRows += `<tr class="lib">
+  <td colspan="2">${esc(libSummary(group.count, group.names))}</td>
+</tr>\n`;
+        }
+    }
+
+    return `<!doctype html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>Error</title>
+<style>
+  * { margin: 0; padding: 0; box-sizing: border-box; }
+  body {
+    font-family: "SF Mono", "Menlo", "Consolas", monospace;
+    font-size: 14px;
+    background: #1a1a2e;
+    color: #e0e0e0;
+    padding: 40px;
+  }
+  .error-label {
+    display: inline-block;
+    background: #e74c3c;
+    color: #fff;
+    font-weight: 700;
+    font-size: 12px;
+    padding: 2px 8px;
+    border-radius: 3px;
+    letter-spacing: 0.5px;
+  }
+  .message {
+    margin-top: 12px;
+    font-size: 18px;
+    font-weight: 600;
+    color: #f8f8f2;
+    line-height: 1.4;
+  }
+  table {
+    margin-top: 24px;
+    border-collapse: collapse;
+  }
+  tr.app td { padding: 4px 0; }
+  tr.app .loc {
+    color: #56d4dd;
+    font-weight: 600;
+    padding-right: 24px;
+    white-space: nowrap;
+  }
+  tr.app .fn { color: #ccc; }
+  tr.lib td {
+    color: #666;
+    padding: 4px 0;
+    font-style: italic;
+  }
+</style>
+</head>
+<body>
+  <span class="error-label">ERROR</span>
+  <div class="message">${esc(message)}</div>
+  <table>${frameRows}</table>
+</body>
+</html>`;
+}
+
+export { formatError, formatErrorHtml };

backend/diachron/hydrators/hydrator.ts

@@ -0,0 +1,29 @@
+import { Kysely, PostgresDialect } from "kysely";
+import { Pool } from "pg";
+import type { DB } from "../../generated/db";
+import { connectionConfig } from "../database";
+
+const db = new Kysely<DB>({
+    dialect: new PostgresDialect({
+        pool: new Pool(connectionConfig),
+    }),
+    log(event) {
+        if (event.level === "query") {
+            // FIXME: Wire this up to the logging system
+            console.log("SQL:", event.query.sql);
+            console.log("Params:", event.query.parameters);
+        }
+    },
+});
+
+abstract class Hydrator<T> {
+    public db: Kysely<DB>;
+
+    protected abstract table: string;
+
+    constructor() {
+        this.db = db;
+    }
+}
+
+export { Hydrator, db };

backend/diachron/hydrators/index.ts

@@ -0,0 +1 @@
+export type Hydrators = {};

backend/diachron/hydrators/tests/setup.ts

@@ -0,0 +1,44 @@
+// Test setup for hydrator tests
+// Run: DB_PORT=5433 DB_USER=diachron_test DB_PASSWORD=diachron_test DB_NAME=diachron_test npx tsx --test tests/*.test.ts
+
+import { Pool } from "pg";
+import { connectionConfig, migrate } from "../../database";
+
+const pool = new Pool(connectionConfig);
+
+export async function setupTestDatabase(): Promise<void> {
+    await migrate();
+}
+
+export async function cleanupTables(): Promise<void> {
+    // Clean in reverse dependency order
+    await pool.query("DELETE FROM user_emails");
+    await pool.query("DELETE FROM users");
+}
+
+export async function teardownTestDatabase(): Promise<void> {
+    await pool.end();
+}
+
+export async function insertTestUser(data: {
+    id: string;
+    displayName: string;
+    status: string;
+    email: string;
+}): Promise<void> {
+    const emailId = crypto.randomUUID();
+    const normalizedEmail = data.email.toLowerCase().trim();
+
+    await pool.query(
+        `INSERT INTO users (id, display_name, status) VALUES ($1, $2, $3)`,
+        [data.id, data.displayName, data.status],
+    );
+
+    await pool.query(
+        `INSERT INTO user_emails (id, user_id, email, normalized_email, is_primary)
+         VALUES ($1, $2, $3, $4, true)`,
+        [emailId, data.id, data.email, normalizedEmail],
+    );
+}
+
+export { pool };

backend/diachron/hydrators/tests/user.spec.ts

@@ -0,0 +1,98 @@
+// Tests for user hydrator
+// Run with: cd express && DB_PORT=5433 DB_USER=diachron_test DB_PASSWORD=diachron_test DB_NAME=diachron_test ../cmd npx tsx --test diachron/hydrators/tests/user.test.ts
+
+import assert from "node:assert/strict";
+import { after, before, beforeEach, describe, it } from "node:test";
+import { get } from "../user";
+import {
+    cleanupTables,
+    insertTestUser,
+    setupTestDatabase,
+    teardownTestDatabase,
+} from "./setup";
+
+describe("user hydrator", () => {
+    before(async () => {
+        await setupTestDatabase();
+    });
+
+    after(async () => {
+        await teardownTestDatabase();
+    });
+
+    beforeEach(async () => {
+        await cleanupTables();
+    });
+
+    describe("get", () => {
+        it("returns null for non-existent user", async () => {
+            const result = await get("00000000-0000-0000-0000-000000000000");
+            assert.equal(result, null);
+        });
+
+        it("returns user when found", async () => {
+            const userId = "cfae0a19-6515-4813-bc2d-1e032b72b203";
+            await insertTestUser({
+                id: userId,
+                displayName: "Test User",
+                status: "active",
+                email: "test@example.com",
+            });
+
+            const result = await get(userId);
+
+            assert.notEqual(result, null);
+            assert.equal(result!.id, userId);
+            assert.equal(result!.display_name, "Test User");
+            assert.equal(result!.status, "active");
+            assert.equal(result!.email, "test@example.com");
+        });
+
+        it("validates user data with zod parser", async () => {
+            const userId = crypto.randomUUID();
+            await insertTestUser({
+                id: userId,
+                displayName: "Valid User",
+                status: "active",
+                email: "valid@example.com",
+            });
+
+            const result = await get(userId);
+
+            // If we get here without throwing, parsing succeeded
+            assert.notEqual(result, null);
+            assert.equal(typeof result!.id, "string");
+            assert.equal(typeof result!.email, "string");
+        });
+
+        it("returns user with pending status", async () => {
+            const userId = crypto.randomUUID();
+            await insertTestUser({
+                id: userId,
+                displayName: "Pending User",
+                status: "pending",
+                email: "pending@example.com",
+            });
+
+            const result = await get(userId);
+
+            assert.notEqual(result, null);
+            assert.equal(result!.status, "pending");
+        });
+
+        it("returns user with suspended status", async () => {
+            const userId = crypto.randomUUID();
+            await insertTestUser({
+                id: userId,
+                displayName: "Suspended User",
+                status: "suspended",
+                email: "suspended@example.com",
+            });
+
+            const result = await get(userId);
+
+            assert.notEqual(result, null);
+            assert.equal(result!.status, "suspended");
+        });
+    });
+});

backend/diachron/hydrators/user.ts

@@ -0,0 +1,59 @@
+import {
+    ColumnType,
+    Generated,
+    Insertable,
+    JSONColumnType,
+    Selectable,
+    Updateable,
+} from "kysely";
+import type { TypeID } from "typeid-js";
+import { z } from "zod";
+import { db, Hydrator } from "./hydrator";
+
+const parser = z.object({
+    // id: z.uuidv7(),
+    id: z.uuid(),
+    display_name: z.string(),
+    // FIXME: status is duplicated elsewhere
+    status: z.union([
+        z.literal("active"),
+        z.literal("suspended"),
+        z.literal("pending"),
+    ]),
+    email: z.email(),
+});
+
+const tp = parser.parse({
+    id: "cfae0a19-6515-4813-bc2d-1e032b72b203",
+    display_name: "foo",
+    status: "active",
+    email: "mw@philologue.net",
+});
+
+export type User = z.infer<typeof parser>;
+
+const get = async (id: string): Promise<null | User> => {
+    const ret = await db
+        .selectFrom("users")
+        .where("users.id", "=", id)
+        .innerJoin("user_emails", "user_emails.user_id", "users.id")
+        .select([
+            "users.id",
+            "users.status",
+            "users.display_name",
+            "user_emails.email",
+        ])
+        .executeTakeFirst();
+
+    if (ret === undefined) {
+        return null;
+    }
+
+    console.dir(ret);
+
+    const parsed = parser.parse(ret);
+
+    return parsed;
+};
+
+export { get };

backend/diachron/logging.spec.ts

@@ -0,0 +1,53 @@
+// Tests for logging.ts
+// Note: These tests verify the module structure and types.
+// Full integration tests would require a running logging service.
+
+import assert from "node:assert/strict";
+import { describe, it } from "node:test";
+
+// We can't easily test log() and getLogs() without mocking fetch,
+// but we can verify the module exports correctly and types work.
+
+describe("logging", () => {
+    describe("module structure", () => {
+        it("exports log function", async () => {
+            const { log } = await import("./logging");
+            assert.equal(typeof log, "function");
+        });
+
+        it("exports getLogs function", async () => {
+            const { getLogs } = await import("./logging");
+            assert.equal(typeof getLogs, "function");
+        });
+    });
+
+    describe("Message type", () => {
+        // Type-level tests - if these compile, the types are correct
+        it("accepts valid message sources", () => {
+            type MessageSource = "logging" | "diagnostic" | "user";
+            const sources: MessageSource[] = ["logging", "diagnostic", "user"];
+            assert.equal(sources.length, 3);
+        });
+    });
+
+    describe("FilterArgument type", () => {
+        // Type-level tests
+        it("accepts valid filter options", () => {
+            type FilterArgument = {
+                limit?: number;
+                before?: number;
+                after?: number;
+                match?: (string | RegExp)[];
+            };
+
+            const filter: FilterArgument = {
+                limit: 10,
+                before: Date.now(),
+                after: Date.now() - 3600000,
+                match: ["error", /warning/i],
+            };
+
+            assert.ok(filter.limit === 10);
+        });
+    });
+});

backend/diachron/package.json

@@ -1,11 +1,13 @@
 {
-    "name": "express",
+    "name": "diachron",
     "version": "1.0.0",
     "description": "",
     "main": "index.js",
     "scripts": {
-        "test": "echo \"Error: no test specified\" && exit 1",
-        "nodemon": "nodemon dist/index.js"
+        "test": "DB_PORT=5433 DB_USER=diachron_test DB_PASSWORD=diachron_test DB_NAME=diachron_test tsx --test '**/*.{test,spec}.ts'",
+        "test:watch": "DB_PORT=5433 DB_USER=diachron_test DB_PASSWORD=diachron_test DB_NAME=diachron_test tsx --test --watch '**/*.{test,spec}.ts'",
+        "nodemon": "nodemon dist/index.js",
+        "kysely-codegen": "kysely-codegen"
     },
     "keywords": [],
     "author": "",
@@ -24,12 +26,14 @@
         "ts-luxon": "^6.2.0",
         "ts-node": "^10.9.2",
         "tsx": "^4.20.6",
+        "typeid-js": "^1.2.0",
         "typescript": "^5.9.3",
         "zod": "^4.1.12"
     },
     "devDependencies": {
         "@biomejs/biome": "2.3.10",
         "@types/express": "^5.0.5",
-        "@types/pg": "^8.16.0"
+        "@types/pg": "^8.16.0",
+        "kysely-codegen": "^0.19.0"
     }
 }

backend/diachron/pnpm-lock.yaml

@@ -44,6 +44,9 @@ importers:
       tsx:
         specifier: ^4.20.6
         version: 4.20.6
+      typeid-js:
+        specifier: ^1.2.0
+        version: 1.2.0
       typescript:
         specifier: ^5.9.3
         version: 5.9.3
@@ -60,9 +63,20 @@ importers:
       '@types/pg':
         specifier: ^8.16.0
         version: 8.16.0
+      kysely-codegen:
+        specifier: ^0.19.0
+        version: 0.19.0(kysely@0.28.9)(pg@8.16.3)(typescript@5.9.3)
 
 packages:
 
+  '@babel/code-frame@7.28.6':
+    resolution: {integrity: sha512-JYgintcMjRiCvS8mMECzaEn+m3PfoQiyqukOMCCVQtoJGYJw8j/8LBJEiqkHLkfwCcs74E3pbAUFNg7d9VNJ+Q==}
+    engines: {node: '>=6.9.0'}
+
+  '@babel/helper-validator-identifier@7.28.5':
+    resolution: {integrity: sha512-qSs4ifwzKJSV39ucNjsvc6WVHs6b7S03sOh2OcHF9UHfVPqWWALUsNUVzhSBiItjRZoLHx7nIarVjqKVusUZ1Q==}
+    engines: {node: '>=6.9.0'}
+
   '@biomejs/biome@2.3.10':
     resolution: {integrity: sha512-/uWSUd1MHX2fjqNLHNL6zLYWBbrJeG412/8H7ESuK8ewoRoMPUgHDebqKrPTx/5n6f17Xzqc9hdg3MEqA5hXnQ==}
     engines: {node: '>=14.21.3'}
@@ -360,6 +374,14 @@ packages:
     engines: {node: '>=0.4.0'}
     hasBin: true
 
+  ansi-styles@3.2.1:
+    resolution: {integrity: sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==}
+    engines: {node: '>=4'}
+
+  ansi-styles@4.3.0:
+    resolution: {integrity: sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==}
+    engines: {node: '>=8'}
+
   anymatch@3.1.3:
     resolution: {integrity: sha512-KMReFUr0B4t+D+OBkjR3KYqvocp2XaSzO55UcB6mgQMd3KbcE+mWTyvVV7D/zsdEbNnV6acZUutkiHQXvTr1Rw==}
     engines: {node: '>= 8'}
@@ -367,6 +389,9 @@ packages:
   arg@4.1.3:
     resolution: {integrity: sha512-58S9QDqG0Xx27YwPSt9fJxivjYl432YCwfDMfZ+71RAqUrZef7LrKQZ3LHLOwCS4FLNBplP533Zx895SeOCHvA==}
 
+  argparse@2.0.1:
+    resolution: {integrity: sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q==}
+
   asap@2.0.6:
     resolution: {integrity: sha512-BSHWgDSAiKs50o2Re8ppvp3seVHXSRM44cdSsT9FfNEUUZLOGWVCsiWaRPWM1Znn+mqZ1OfVZ3z3DWEzSp7hRA==}
 
@@ -400,10 +425,35 @@ packages:
     resolution: {integrity: sha512-+ys997U96po4Kx/ABpBCqhA9EuxJaQWDQg7295H4hBphv3IZg0boBKuwYpt4YXp6MZ5AmZQnU/tyMTlRpaSejg==}
     engines: {node: '>= 0.4'}
 
+  callsites@3.1.0:
+    resolution: {integrity: sha512-P8BjAsXvZS+VIDUI11hHCQEv74YT67YUi5JJFNWIqL235sBmjX4+qx9Muvls5ivyNENctx46xQLQ3aTuE7ssaQ==}
+    engines: {node: '>=6'}
+
+  chalk@2.4.2:
+    resolution: {integrity: sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==}
+    engines: {node: '>=4'}
+
+  chalk@4.1.2:
+    resolution: {integrity: sha512-oKnbhFyRIXpUuez8iBMmyEa4nbj4IOQyuhc/wy9kY7/WVPcwIO9VA668Pu8RkO7+0G76SLROeyw9CpQ061i4mA==}
+    engines: {node: '>=10'}
+
   chokidar@3.6.0:
     resolution: {integrity: sha512-7VT13fmjotKpGipCW9JEQAusEPE+Ei8nl6/g4FBAmIm0GOOLMua9NDDo/DWp0ZAxCr3cPq5ZpBqmPAQgDda2Pw==}
     engines: {node: '>= 8.10.0'}
 
+  color-convert@1.9.3:
+    resolution: {integrity: sha512-QfAUtd+vFdAtFQcC8CCyYt1fYWxSqAiK2cSD6zDB8N3cpsEBAvRxp9zOGg6G/SHHJYAT88/az/IuDGALsNVbGg==}
+
+  color-convert@2.0.1:
+    resolution: {integrity: sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==}
+    engines: {node: '>=7.0.0'}
+
+  color-name@1.1.3:
+    resolution: {integrity: sha512-72fSenhMw2HZMTVHeCA9KCmpEIbzWiQsjN+BHcBbS9vr1mtt+vJjPdksIBNUmKAW8TFUDPJK5SUU3QhE9NEXDw==}
+
+  color-name@1.1.4:
+    resolution: {integrity: sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==}
+
   commander@5.1.0:
     resolution: {integrity: sha512-P0CysNDQ7rtVw4QIQtm+MRxV66vKFSvlsQvGYXZWR3qFU0jlMKHZZZgw8e+8DSah4UDKMqnknRDQz+xuQXQ/Zg==}
     engines: {node: '>= 6'}
@@ -427,6 +477,15 @@ packages:
     resolution: {integrity: sha512-yki5XnKuf750l50uGTllt6kKILY4nQ1eNIQatoXEByZ5dWgnKqbnqmTrBE5B4N7lrMJKQ2ytWMiTO2o0v6Ew/w==}
     engines: {node: '>= 0.6'}
 
+  cosmiconfig@9.0.0:
+    resolution: {integrity: sha512-itvL5h8RETACmOTFc4UfIyB2RfEHi71Ax6E/PivVxq9NseKbOWpeyHEOIbmAw1rs8Ak0VursQNww7lf7YtUwzg==}
+    engines: {node: '>=14'}
+    peerDependencies:
+      typescript: '>=4.9.5'
+    peerDependenciesMeta:
+      typescript:
+        optional: true
+
   create-require@1.1.1:
     resolution: {integrity: sha512-dcKFX3jn0MpIaXjisoRvexIJVEKzaq7z2rZKxf+MSr9TkdmHmsU4m2lcLojrj/FHl8mk5VxMmYA+ftRkP/3oKQ==}
 
@@ -443,10 +502,26 @@ packages:
     resolution: {integrity: sha512-g7nH6P6dyDioJogAAGprGpCtVImJhpPk/roCzdb3fIh61/s/nPsfR6onyMwkCAR/OlC3yBC0lESvUoQEAssIrw==}
     engines: {node: '>= 0.8'}
 
+  diff@3.5.0:
+    resolution: {integrity: sha512-A46qtFgd+g7pDZinpnwiRJtxbC1hpgf0uzP3iG89scHk0AUC7A1TGxf5OiiOUv/JMZR8GOt8hL900hV0bOy5xA==}
+    engines: {node: '>=0.3.1'}
+
   diff@4.0.2:
     resolution: {integrity: sha512-58lmxKSA4BNyLz+HHMUzlOEpg09FV+ev6ZMe3vJihgdxzgcwZ8VoEEPmALCZG9LmqfVoNMMKpttIYTVG6uDY7A==}
     engines: {node: '>=0.3.1'}
 
+  dotenv-expand@12.0.3:
+    resolution: {integrity: sha512-uc47g4b+4k/M/SeaW1y4OApx+mtLWl92l5LMPP0GNXctZqELk+YGgOPIIC5elYmUH4OuoK3JLhuRUYegeySiFA==}
+    engines: {node: '>=12'}
+
+  dotenv@16.6.1:
+    resolution: {integrity: sha512-uBq4egWHTcTt33a72vpSG0z3HnPuIl6NqYcTrKEg2azoEyl2hpW0zqlxysq2pK9HlDIHyHyakeYaYnSAwd8bow==}
+    engines: {node: '>=12'}
+
+  dotenv@17.2.3:
+    resolution: {integrity: sha512-JVUnt+DUIzu87TABbhPmNfVdBDt18BLOWjMUFJMSi/Qqg7NTYtabbvSNJGOJ7afbRuv9D/lngizHtP7QyLQ+9w==}
+    engines: {node: '>=12'}
+
   dunder-proto@1.0.1:
     resolution: {integrity: sha512-KIN/nDJBQRcXw0MLVhZE9iQHmG68qAVIBg9CqmUYjmQIhgij9U5MFvrqkUL5FbtyyzZuOeOt0zdeRe4UY7ct+A==}
     engines: {node: '>= 0.4'}
@@ -458,6 +533,13 @@ packages:
     resolution: {integrity: sha512-Q0n9HRi4m6JuGIV1eFlmvJB7ZEVxu93IrMyiMsGC0lrMJMWzRgx6WGquyfQgZVb31vhGgXnfmPNNXmxnOkRBrg==}
     engines: {node: '>= 0.8'}
 
+  env-paths@2.2.1:
+    resolution: {integrity: sha512-+h1lkLKhZMTYjog1VEpJNG7NZJWcuc2DDk/qsqSTRRCOXiLjeQ1d1/udrUGhqMxUgAlwKNZ0cf2uqan5GLuS2A==}
+    engines: {node: '>=6'}
+
+  error-ex@1.3.4:
+    resolution: {integrity: sha512-sqQamAnR14VgCr1A618A3sGrygcpK+HEbenA/HiEAkkUwcZIIB/tgWqHFxWgOyDh4nB4JCRimh79dR5Ywc9MDQ==}
+
   es-define-property@1.0.1:
     resolution: {integrity: sha512-e3nRfgfUZ4rNGL232gUgX06QNyyez04KdjFrF+LTRoOXmrOgFKDg4BCdsjW8EnT69eqdYGmRpJwiPVYNrCaW3g==}
     engines: {node: '>= 0.4'}
@@ -478,6 +560,10 @@ packages:
   escape-html@1.0.3:
     resolution: {integrity: sha512-NiSupZ4OeuGwr68lGIeym/ksIZMJodUGOSCZ/FSnTxcrekbvqrgdUxlJOMpijaKZVjAJrWrGs/6Jy8OMuyj9ow==}
 
+  escape-string-regexp@1.0.5:
+    resolution: {integrity: sha512-vbRorB5FUQWvla16U8R/qgaFIya2qGzwDrNmCZuYKrbdSUMG6I1ZCGQRefkRVhuOkIGVne7BQ35DSfo1qvJqFg==}
+    engines: {node: '>=0.8.0'}
+
   etag@1.8.1:
     resolution: {integrity: sha512-aIL5Fx7mawVa300al2BnEE4iNvo1qETxLrPI/o05L7z6go7fCw1J6EQmbK4FmJ2AS7kgVF/KEZWufBfdClMcPg==}
     engines: {node: '>= 0.6'}
@@ -502,6 +588,9 @@ packages:
     resolution: {integrity: sha512-Rx/WycZ60HOaqLKAi6cHRKKI7zxWbJ31MhntmtwMoaTeF7XFH9hhBp8vITaMidfljRQ6eYWCKkaTK+ykVJHP2A==}
     engines: {node: '>= 0.8'}
 
+  fs.realpath@1.0.0:
+    resolution: {integrity: sha512-OO0pH2lK6a0hZnAdau5ItzHPI6pUlvI7jMVnxUQRtw4owF2wk8lOSabtGDCTP4Ggrg2MbGnWO9X8K1t4+fGMDw==}
+
   fsevents@2.3.3:
     resolution: {integrity: sha512-5xoDfX+fL7faATnagmWPpbFtwh/R77WmMMqqHGS65C3vvB0YHrgF+B1YmZ3441tMj5n63k0212XNoJwzlhffQw==}
     engines: {node: ^8.16.0 || ^10.6.0 || >=11.0.0}
@@ -521,10 +610,18 @@ packages:
   get-tsconfig@4.13.0:
     resolution: {integrity: sha512-1VKTZJCwBrvbd+Wn3AOgQP/2Av+TfTCOlE4AcRJE72W1ksZXbAx8PPBR9RzgTeSPzlPMHrbANMH3LbltH73wxQ==}
 
+  git-diff@2.0.6:
+    resolution: {integrity: sha512-/Iu4prUrydE3Pb3lCBMbcSNIf81tgGt0W1ZwknnyF62t3tHmtiJTRj0f+1ZIhp3+Rh0ktz1pJVoa7ZXUCskivA==}
+    engines: {node: '>= 4.8.0'}
+
   glob-parent@5.1.2:
     resolution: {integrity: sha512-AOIgSQCepiJYwP3ARnGx+5VnTu2HBYdzbGP45eLw1vr3zB3vZLeyed1sC9hnbcOc9/SrMyM5RPQrkGz4aS9Zow==}
     engines: {node: '>= 6'}
 
+  glob@7.2.3:
+    resolution: {integrity: sha512-nFR0zLpU2YCaRxwoCJvL6UvCH2JFyFVIvwTLsIf21AuHlMskA1hhTdk+LlYJtOlYt9v6dvszD2BGRqBL+iQK9Q==}
+    deprecated: Glob versions prior to v9 are no longer supported
+
   gopd@1.2.0:
     resolution: {integrity: sha512-ZUKRh6/kUFoAiTAtTYPZJ3hw9wNxx+BIBOijnlG9PnrJsCcSjs1wyyD6vJpaYtgnzDrKYRSqf3OO6Rfa93xsRg==}
     engines: {node: '>= 0.4'}
@@ -533,6 +630,10 @@ packages:
     resolution: {integrity: sha512-sKJf1+ceQBr4SMkvQnBDNDtf4TXpVhVGateu0t918bl30FnbE2m4vNLX+VWe/dpjlb+HugGYzW7uQXH98HPEYw==}
     engines: {node: '>=4'}
 
+  has-flag@4.0.0:
+    resolution: {integrity: sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==}
+    engines: {node: '>=8'}
+
   has-symbols@1.1.0:
     resolution: {integrity: sha512-1cDNdwJ2Jaohmb3sg4OmKaMBwuC48sYni5HUw2DvsC8LjGTLK9h+eb1X6RyuOHe4hT0ULCW68iomhjUoKUqlPQ==}
     engines: {node: '>= 0.4'}
@@ -556,17 +657,36 @@ packages:
   ignore-by-default@1.0.1:
     resolution: {integrity: sha512-Ius2VYcGNk7T90CppJqcIkS5ooHUZyIQK+ClZfMfMNFEF9VSE73Fq+906u/CWu92x4gzZMWOwfFYckPObzdEbA==}
 
+  import-fresh@3.3.1:
+    resolution: {integrity: sha512-TR3KfrTZTYLPB6jUjfx6MF9WcWrHL9su5TObK4ZkYgBdWKPOFoSoQIdEuTuR82pmtxH2spWG9h6etwfr1pLBqQ==}
+    engines: {node: '>=6'}
+
+  inflight@1.0.6:
+    resolution: {integrity: sha512-k92I/b08q4wvFscXCLvqfsHCrjrF7yiXsQuIVvVE7N82W3+aqpzuUdBbfhWcy/FZR3/4IgflMgKLOsvPDrGCJA==}
+    deprecated: This module is not supported, and leaks memory. Do not use it. Check out lru-cache if you want a good and tested way to coalesce async requests by a key value, which is much more comprehensive and powerful.
+
   inherits@2.0.4:
     resolution: {integrity: sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==}
 
+  interpret@1.4.0:
+    resolution: {integrity: sha512-agE4QfB2Lkp9uICn7BAqoscw4SZP9kTE2hxiFI3jBPmXJfdqiahTbUuKGsMoN2GtqL9AxhYioAcVvgsb1HvRbA==}
+    engines: {node: '>= 0.10'}
+
   ipaddr.js@1.9.1:
     resolution: {integrity: sha512-0KI/607xoxSToH7GjN1FfSbLoU0+btTicjsQSWQlh/hZykN8KpmMf7uYwPW3R+akZ6R/w18ZlXSHBYXiYUPO3g==}
     engines: {node: '>= 0.10'}
 
+  is-arrayish@0.2.1:
+    resolution: {integrity: sha512-zz06S8t0ozoDXMG+ube26zeCTNXcKIPJZJi8hBrF4idCLms4CG9QtK7qBl1boi5ODzFpjswb5JPmHCbMpjaYzg==}
+
   is-binary-path@2.1.0:
     resolution: {integrity: sha512-ZMERYes6pDydyuGidse7OsHxtbI7WVeUEozgR/g7rd0xUimYNlvZRE/K2MgZTjWy725IfelLeVcEM97mmtRGXw==}
     engines: {node: '>=8'}
 
+  is-core-module@2.16.1:
+    resolution: {integrity: sha512-UfoeMA6fIJ8wTYFEUjelnaGI67v6+N7qXJEvQuIGa99l4xsCruSYOVSQ0uPANn4dAzm8lkYPaKLrrijLq7x23w==}
+    engines: {node: '>= 0.4'}
+
   is-extglob@2.1.1:
     resolution: {integrity: sha512-SbKbANkN603Vi4jEZv49LeVJMn4yGwsbzZworEoyEiutsN3nJYdbO36zfhGJ6QEDpOZIFkDtnq5JRxmvl3jsoQ==}
     engines: {node: '>=0.10.0'}
@@ -582,10 +702,62 @@ packages:
   is-promise@4.0.0:
     resolution: {integrity: sha512-hvpoI6korhJMnej285dSg6nu1+e6uxs7zG3BYAm5byqDsgJNWwxzM6z6iZiAgQR4TJ30JmBTOwqZUw3WlyH3AQ==}
 
+  js-tokens@4.0.0:
+    resolution: {integrity: sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ==}
+
+  js-yaml@4.1.1:
+    resolution: {integrity: sha512-qQKT4zQxXl8lLwBtHMWwaTcGfFOZviOJet3Oy/xmGk2gZH677CJM9EvtfdSkgWcATZhj/55JZ0rmy3myCT5lsA==}
+    hasBin: true
+
+  json-parse-even-better-errors@2.3.1:
+    resolution: {integrity: sha512-xyFwyhro/JEof6Ghe2iz2NcXoj2sloNsWr/XsERDK/oiPCfaNhl5ONfp+jQdAZRQQ0IJWNzH9zIZF7li91kh2w==}
+
+  kysely-codegen@0.19.0:
+    resolution: {integrity: sha512-ZpdQQnpfY0kh45CA6yPA9vdFsBE+b06Fx7QVcbL5rX//yjbA0yYGZGhnH7GTd4P4BY/HIv5uAfuOD83JVZf95w==}
+    engines: {node: '>=20.0.0'}
+    hasBin: true
+    peerDependencies:
+      '@libsql/kysely-libsql': '>=0.3.0 <0.5.0'
+      '@tediousjs/connection-string': '>=0.5.0 <0.6.0'
+      better-sqlite3: '>=7.6.2 <13.0.0'
+      kysely: '>=0.27.0 <1.0.0'
+      kysely-bun-sqlite: '>=0.3.2 <1.0.0'
+      kysely-bun-worker: '>=1.2.0 <2.0.0'
+      mysql2: '>=2.3.3 <4.0.0'
+      pg: '>=8.8.0 <9.0.0'
+      tarn: '>=3.0.0 <4.0.0'
+      tedious: '>=18.0.0 <20.0.0'
+    peerDependenciesMeta:
+      '@libsql/kysely-libsql':
+        optional: true
+      '@tediousjs/connection-string':
+        optional: true
+      better-sqlite3:
+        optional: true
+      kysely-bun-sqlite:
+        optional: true
+      kysely-bun-worker:
+        optional: true
+      mysql2:
+        optional: true
+      pg:
+        optional: true
+      tarn:
+        optional: true
+      tedious:
+        optional: true
+
   kysely@0.28.9:
     resolution: {integrity: sha512-3BeXMoiOhpOwu62CiVpO6lxfq4eS6KMYfQdMsN/2kUCRNuF2YiEr7u0HLHaQU+O4Xu8YXE3bHVkwaQ85i72EuA==}
     engines: {node: '>=20.0.0'}
 
+  lines-and-columns@1.2.4:
+    resolution: {integrity: sha512-7ylylesZQ/PV29jhEDl3Ufjo6ZX7gCqJr5F7PKrqc93v7fzSymt1BpwEU8nAUXs8qzzvqhbjhK5QZg6Mt/HkBg==}
+
+  loglevel@1.9.2:
+    resolution: {integrity: sha512-HgMmCqIJSAKqo68l0rS2AanEWfkxaZ5wNiEFb5ggm08lDs9Xl2KxBlX3PTcaD2chBM1gXAYf491/M2Rv8Jwayg==}
+    engines: {node: '>= 0.6.0'}
+
   make-error@1.3.6:
     resolution: {integrity: sha512-s8UhlNe7vPKomQhC1qFelMokr/Sc3AgNbso3n74mVPA5LTZwkB9NlXf4XPamLxJE8h0gh73rM94xvwRT2CVInw==}
 
@@ -601,6 +773,10 @@ packages:
     resolution: {integrity: sha512-Snk314V5ayFLhp3fkUREub6WtjBfPdCPY1Ln8/8munuLuiYhsABgBVWsozAG+MWMbVEvcdcpbi9R7ww22l9Q3g==}
     engines: {node: '>=18'}
 
+  micromatch@4.0.8:
+    resolution: {integrity: sha512-PXwfBhYu0hBCPw8Dn0E+WDYb7af3dSLVWKi3HGv84IdF4TyFoC0ysxFd0Goxw7nSv4T/PzEJQxsYsEiFCKo2BA==}
+    engines: {node: '>=8.6'}
+
   mime-db@1.54.0:
     resolution: {integrity: sha512-aU5EJuIN2WDemCcAp2vFBfp/m4EAhWJnUNSSw0ixs7/kXbd6Pg64EmwJkNdFhB8aWt1sH2CTXrLxo/iAGV3oPQ==}
     engines: {node: '>= 0.6'}
@@ -612,6 +788,9 @@ packages:
   minimatch@3.1.2:
     resolution: {integrity: sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw==}
 
+  minimist@1.2.8:
+    resolution: {integrity: sha512-2yyAR8qBkN3YuheJanUpWC5U3bb5osDywNB8RzDVlDwDHbocAJveqqj1u8+SVD7jkWT4yvsHCpWqqWqAxb0zCA==}
+
   ms@2.1.3:
     resolution: {integrity: sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==}
 
@@ -649,10 +828,25 @@ packages:
   once@1.4.0:
     resolution: {integrity: sha512-lNaJgI+2Q5URQBkccEKHTQOPaXdUxnZZElQTZY0MFUAuaEqe1E+Nyvgdz/aIyNi6Z9MzO5dv1H8n58/GELp3+w==}
 
+  parent-module@1.0.1:
+    resolution: {integrity: sha512-GQ2EWRpQV8/o+Aw8YqtfZZPfNRWZYkbidE9k5rpl/hC3vtHHBfGm2Ifi6qWV+coDGkrUKZAxE3Lot5kcsRlh+g==}
+    engines: {node: '>=6'}
+
+  parse-json@5.2.0:
+    resolution: {integrity: sha512-ayCKvm/phCGxOkYRSCM82iDwct8/EonSEgCSxWxD7ve6jHggsFl4fZVQBPRNgQoKiuV/odhFrGzQXZwbifC8Rg==}
+    engines: {node: '>=8'}
+
   parseurl@1.3.3:
     resolution: {integrity: sha512-CiyeOxFT/JZyN5m0z9PfXw4SCBJ6Sygz1Dpl0wqjlhDEGGBP1GnsUVEL0p63hoG1fcj3fHynXi9NYO4nWOL+qQ==}
     engines: {node: '>= 0.8'}
 
+  path-is-absolute@1.0.1:
+    resolution: {integrity: sha512-AVbw3UJ2e9bq64vSaS9Am0fje1Pa8pbGqTTsmXfaIiMpnr5DlDhfJOuLj9Sf95ZPVDAUerDfEk88MPmPe7UCQg==}
+    engines: {node: '>=0.10.0'}
+
+  path-parse@1.0.7:
+    resolution: {integrity: sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw==}
+
   path-to-regexp@8.3.0:
     resolution: {integrity: sha512-7jdwVIRtsP8MYpdXSwOS0YdD0Du+qOoF/AEPIt88PcCFrZCzx41oxku1jD88hZBwbNUIEfpqvuhjFaMAqMTWnA==}
 
@@ -690,10 +884,17 @@ packages:
   pgpass@1.0.5:
     resolution: {integrity: sha512-FdW9r/jQZhSeohs1Z3sI1yxFQNFvMcnmfuj4WBMUTxOrAyLMaTcE1aAMBiTlbMNaXvBCQuVi0R7hd8udDSP7ug==}
 
+  picocolors@1.1.1:
+    resolution: {integrity: sha512-xceH2snhtb5M9liqDsmEw56le376mTZkEX/jEb/RxNFyegNul7eNslCXP9FDj/Lcu0X8KEyMceP2ntpaHrDEVA==}
+
   picomatch@2.3.1:
     resolution: {integrity: sha512-JU3teHTNjmE2VCGFzuY8EXzCDVwEqB2a8fsIvwaStHhAWJEeVd1o1QD80CU6+ZdEXXSLbSsuLwJjkCBWqRQUVA==}
     engines: {node: '>=8.6'}
 
+  pluralize@8.0.0:
+    resolution: {integrity: sha512-Nc3IT5yHzflTfbjgqWcCPpo7DaKy4FnpB0l/zCAW0Tc7jxAiuqSxHasntB3D7887LSrA93kDJ9IXovxJYxyLCA==}
+    engines: {node: '>=4'}
+
   postgres-array@2.0.0:
     resolution: {integrity: sha512-VpZrUqU5A69eQyW2c5CA1jtLecCsN2U/bD6VilrFDWq5+5UIEVO7nazS3TEcHf1zuPYO/sqGvUvW62g86RXZuA==}
     engines: {node: '>=4'}
@@ -733,9 +934,22 @@ packages:
     resolution: {integrity: sha512-hOS089on8RduqdbhvQ5Z37A0ESjsqz6qnRcffsMU3495FuTdqSm+7bhJ29JvIOsBDEEnan5DPu9t3To9VRlMzA==}
     engines: {node: '>=8.10.0'}
 
+  rechoir@0.6.2:
+    resolution: {integrity: sha512-HFM8rkZ+i3zrV+4LQjwQ0W+ez98pApMGM3HUrN04j3CqzPOzl9nmP15Y8YXNm8QHGv/eacOVEjqhmWpkRV0NAw==}
+    engines: {node: '>= 0.10'}
+
+  resolve-from@4.0.0:
+    resolution: {integrity: sha512-pb/MYmXstAkysRFx8piNI1tGFNQIFA3vkE3Gq4EuA1dF6gHp/+vgZqsCGJapvy8N3Q+4o7FwvquPJcnZ7RYy4g==}
+    engines: {node: '>=4'}
+
   resolve-pkg-maps@1.0.0:
     resolution: {integrity: sha512-seS2Tj26TBVOC2NIc2rOe2y2ZO7efxITtLZcGSOnHHNOQ7CkiUBfw0Iw2ck6xkIhPwLhKNLS8BO+hEpngQlqzw==}
 
+  resolve@1.22.11:
+    resolution: {integrity: sha512-RfqAvLnMl313r7c9oclB1HhUEAezcpLjz95wFH4LVuhk9JF/r22qmVP9AMmOU4vMX7Q8pN8jwNg/CSpdFnMjTQ==}
+    engines: {node: '>= 0.4'}
+    hasBin: true
+
   router@2.2.0:
     resolution: {integrity: sha512-nLTrUKm2UyiL7rlhapu/Zl45FwNgkZGaCpZbIHajDYgwlJCOzLSk+cIPAnsEqV955GjILJnKbdQC1nVPz+gAYQ==}
     engines: {node: '>= 18'}
@@ -762,6 +976,15 @@ packages:
   setprototypeof@1.2.0:
     resolution: {integrity: sha512-E5LDX7Wrp85Kil5bhZv46j8jOeboKq5JMmYM3gVGdGH8xFpPWXUMsNrlODCrkoxMEeNi/XZIwuRvY4XNwYMJpw==}
 
+  shelljs.exec@1.1.8:
+    resolution: {integrity: sha512-vFILCw+lzUtiwBAHV8/Ex8JsFjelFMdhONIsgKNLgTzeRckp2AOYRQtHJE/9LhNvdMmE27AGtzWx0+DHpwIwSw==}
+    engines: {node: '>= 4.0.0'}
+
+  shelljs@0.8.5:
+    resolution: {integrity: sha512-TiwcRcrkhHvbrZbnRcFYMLl30Dfov3HKqzp5tO5b4pt6G/SezKcYhmDg15zXVBswHmctSAQKznqNW2LO5tTDow==}
+    engines: {node: '>=4'}
+    hasBin: true
+
   side-channel-list@1.0.0:
     resolution: {integrity: sha512-FCLHtRD/gnpCiCHEiJLOwdmFP+wzCmDEkc9y7NsYxeF4u7Btsn1ZuwgwJGxImImHicJArLP4R0yX4c2KCrMrTA==}
     engines: {node: '>= 0.4'}
@@ -798,6 +1021,14 @@ packages:
     resolution: {integrity: sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==}
     engines: {node: '>=4'}
 
+  supports-color@7.2.0:
+    resolution: {integrity: sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==}
+    engines: {node: '>=8'}
+
+  supports-preserve-symlinks-flag@1.0.0:
+    resolution: {integrity: sha512-ot0WnXS9fgdkgIcePe6RHNk1WA8+muPa6cSjeR3V8K27q9BB1rTE3R1p7Hv0z1ZyAc8s6Vvv8DIyWf681MAt0w==}
+    engines: {node: '>= 0.4'}
+
   to-regex-range@5.0.1:
     resolution: {integrity: sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==}
     engines: {node: '>=8.0'}
@@ -837,6 +1068,9 @@ packages:
     resolution: {integrity: sha512-OZs6gsjF4vMp32qrCbiVSkrFmXtG/AZhY3t0iAMrMBiAZyV9oALtXO8hsrHbMXF9x6L3grlFuwW2oAz7cav+Gw==}
     engines: {node: '>= 0.6'}
 
+  typeid-js@1.2.0:
+    resolution: {integrity: sha512-t76ZucAnvGC60ea/HjVsB0TSoB0cw9yjnfurUgtInXQWUI/VcrlZGpO23KN3iSe8yOGUgb1zr7W7uEzJ3hSljA==}
+
   typescript@5.9.3:
     resolution: {integrity: sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==}
     engines: {node: '>=14.17'}
@@ -852,6 +1086,10 @@ packages:
     resolution: {integrity: sha512-pjy2bYhSsufwWlKwPc+l3cN7+wuJlK6uz0YdJEOlQDbl6jo/YlPi4mb8agUkVC8BF7V8NuzeyPNqRksA3hztKQ==}
     engines: {node: '>= 0.8'}
 
+  uuid@10.0.0:
+    resolution: {integrity: sha512-8XkAphELsDnEGrDxUOHB3RGvXz6TeuYSGEZBOjtTtPm2lwhGBjLgOzLHB63IUWfBpNucQjND6d3AOudO+H3RWQ==}
+    hasBin: true
+
   v8-compile-cache-lib@3.0.1:
     resolution: {integrity: sha512-wa7YjyUGfNZngI/vtK0UHAN+lgDCxBPCylVXGp0zu59Fz5aiGtNXaq3DhIov063MorB+VfufLh3JlF2KdTK3xg==}
 
@@ -875,6 +1113,14 @@ packages:
 
 snapshots:
 
+  '@babel/code-frame@7.28.6':
+    dependencies:
+      '@babel/helper-validator-identifier': 7.28.5
+      js-tokens: 4.0.0
+      picocolors: 1.1.1
+
+  '@babel/helper-validator-identifier@7.28.5': {}
+
   '@biomejs/biome@2.3.10':
     optionalDependencies:
       '@biomejs/cli-darwin-arm64': 2.3.10
@@ -1081,6 +1327,14 @@ snapshots:
 
   acorn@8.15.0: {}
 
+  ansi-styles@3.2.1:
+    dependencies:
+      color-convert: 1.9.3
+
+  ansi-styles@4.3.0:
+    dependencies:
+      color-convert: 2.0.1
+
   anymatch@3.1.3:
     dependencies:
       normalize-path: 3.0.0
@@ -1088,6 +1342,8 @@ snapshots:
 
   arg@4.1.3: {}
 
+  argparse@2.0.1: {}
+
   asap@2.0.6: {}
 
   balanced-match@1.0.2: {}
@@ -1129,6 +1385,19 @@ snapshots:
       call-bind-apply-helpers: 1.0.2
       get-intrinsic: 1.3.0
 
+  callsites@3.1.0: {}
+
+  chalk@2.4.2:
+    dependencies:
+      ansi-styles: 3.2.1
+      escape-string-regexp: 1.0.5
+      supports-color: 5.5.0
+
+  chalk@4.1.2:
+    dependencies:
+      ansi-styles: 4.3.0
+      supports-color: 7.2.0
+
   chokidar@3.6.0:
     dependencies:
       anymatch: 3.1.3
@@ -1141,6 +1410,18 @@ snapshots:
     optionalDependencies:
       fsevents: 2.3.3
 
+  color-convert@1.9.3:
+    dependencies:
+      color-name: 1.1.3
+
+  color-convert@2.0.1:
+    dependencies:
+      color-name: 1.1.4
+
+  color-name@1.1.3: {}
+
+  color-name@1.1.4: {}
+
   commander@5.1.0: {}
 
   concat-map@0.0.1: {}
@@ -1155,6 +1436,15 @@ snapshots:
 
   cookie@0.7.2: {}
 
+  cosmiconfig@9.0.0(typescript@5.9.3):
+    dependencies:
+      env-paths: 2.2.1
+      import-fresh: 3.3.1
+      js-yaml: 4.1.1
+      parse-json: 5.2.0
+    optionalDependencies:
+      typescript: 5.9.3
+
   create-require@1.1.1: {}
 
   debug@4.4.3(supports-color@5.5.0):
@@ -1165,8 +1455,18 @@ snapshots:
 
   depd@2.0.0: {}
 
+  diff@3.5.0: {}
+
   diff@4.0.2: {}
 
+  dotenv-expand@12.0.3:
+    dependencies:
+      dotenv: 16.6.1
+
+  dotenv@16.6.1: {}
+
+  dotenv@17.2.3: {}
+
   dunder-proto@1.0.1:
     dependencies:
       call-bind-apply-helpers: 1.0.2
@@ -1177,6 +1477,12 @@ snapshots:
 
   encodeurl@2.0.0: {}
 
+  env-paths@2.2.1: {}
+
+  error-ex@1.3.4:
+    dependencies:
+      is-arrayish: 0.2.1
+
   es-define-property@1.0.1: {}
 
   es-errors@1.3.0: {}
@@ -1216,6 +1522,8 @@ snapshots:
 
   escape-html@1.0.3: {}
 
+  escape-string-regexp@1.0.5: {}
+
   etag@1.8.1: {}
 
   express@5.1.0:
@@ -1269,6 +1577,8 @@ snapshots:
 
   fresh@2.0.0: {}
 
+  fs.realpath@1.0.0: {}
+
   fsevents@2.3.3:
     optional: true
 
@@ -1296,14 +1606,33 @@ snapshots:
     dependencies:
       resolve-pkg-maps: 1.0.0
 
+  git-diff@2.0.6:
+    dependencies:
+      chalk: 2.4.2
+      diff: 3.5.0
+      loglevel: 1.9.2
+      shelljs: 0.8.5
+      shelljs.exec: 1.1.8
+
   glob-parent@5.1.2:
     dependencies:
       is-glob: 4.0.3
 
+  glob@7.2.3:
+    dependencies:
+      fs.realpath: 1.0.0
+      inflight: 1.0.6
+      inherits: 2.0.4
+      minimatch: 3.1.2
+      once: 1.4.0
+      path-is-absolute: 1.0.1
+
   gopd@1.2.0: {}
 
   has-flag@3.0.0: {}
 
+  has-flag@4.0.0: {}
+
   has-symbols@1.1.0: {}
 
   hasown@2.0.2:
@@ -1328,14 +1657,32 @@ snapshots:
 
   ignore-by-default@1.0.1: {}
 
+  import-fresh@3.3.1:
+    dependencies:
+      parent-module: 1.0.1
+      resolve-from: 4.0.0
+
+  inflight@1.0.6:
+    dependencies:
+      once: 1.4.0
+      wrappy: 1.0.2
+
   inherits@2.0.4: {}
 
+  interpret@1.4.0: {}
+
   ipaddr.js@1.9.1: {}
 
+  is-arrayish@0.2.1: {}
+
   is-binary-path@2.1.0:
     dependencies:
       binary-extensions: 2.3.0
 
+  is-core-module@2.16.1:
+    dependencies:
+      hasown: 2.0.2
+
   is-extglob@2.1.1: {}
 
   is-glob@4.0.3:
@@ -1346,8 +1693,37 @@ snapshots:
 
   is-promise@4.0.0: {}
 
+  js-tokens@4.0.0: {}
+
+  js-yaml@4.1.1:
+    dependencies:
+      argparse: 2.0.1
+
+  json-parse-even-better-errors@2.3.1: {}
+
+  kysely-codegen@0.19.0(kysely@0.28.9)(pg@8.16.3)(typescript@5.9.3):
+    dependencies:
+      chalk: 4.1.2
+      cosmiconfig: 9.0.0(typescript@5.9.3)
+      dotenv: 17.2.3
+      dotenv-expand: 12.0.3
+      git-diff: 2.0.6
+      kysely: 0.28.9
+      micromatch: 4.0.8
+      minimist: 1.2.8
+      pluralize: 8.0.0
+      zod: 4.1.12
+    optionalDependencies:
+      pg: 8.16.3
+    transitivePeerDependencies:
+      - typescript
+
   kysely@0.28.9: {}
 
+  lines-and-columns@1.2.4: {}
+
+  loglevel@1.9.2: {}
+
   make-error@1.3.6: {}
 
   math-intrinsics@1.1.0: {}
@@ -1356,6 +1732,11 @@ snapshots:
 
   merge-descriptors@2.0.0: {}
 
+  micromatch@4.0.8:
+    dependencies:
+      braces: 3.0.3
+      picomatch: 2.3.1
+
   mime-db@1.54.0: {}
 
   mime-types@3.0.1:
@@ -1366,6 +1747,8 @@ snapshots:
     dependencies:
       brace-expansion: 1.1.12
 
+  minimist@1.2.8: {}
+
   ms@2.1.3: {}
 
   negotiator@1.0.0: {}
@@ -1403,8 +1786,23 @@ snapshots:
     dependencies:
       wrappy: 1.0.2
 
+  parent-module@1.0.1:
+    dependencies:
+      callsites: 3.1.0
+
+  parse-json@5.2.0:
+    dependencies:
+      '@babel/code-frame': 7.28.6
+      error-ex: 1.3.4
+      json-parse-even-better-errors: 2.3.1
+      lines-and-columns: 1.2.4
+
   parseurl@1.3.3: {}
 
+  path-is-absolute@1.0.1: {}
+
+  path-parse@1.0.7: {}
+
   path-to-regexp@8.3.0: {}
 
   pg-cloudflare@1.2.7:
@@ -1442,8 +1840,12 @@ snapshots:
     dependencies:
       split2: 4.2.0
 
+  picocolors@1.1.1: {}
+
   picomatch@2.3.1: {}
 
+  pluralize@8.0.0: {}
+
   postgres-array@2.0.0: {}
 
   postgres-bytea@1.0.1: {}
@@ -1478,8 +1880,20 @@ snapshots:
     dependencies:
       picomatch: 2.3.1
 
+  rechoir@0.6.2:
+    dependencies:
+      resolve: 1.22.11
+
+  resolve-from@4.0.0: {}
+
   resolve-pkg-maps@1.0.0: {}
 
+  resolve@1.22.11:
+    dependencies:
+      is-core-module: 2.16.1
+      path-parse: 1.0.7
+      supports-preserve-symlinks-flag: 1.0.0
+
   router@2.2.0:
     dependencies:
       debug: 4.4.3(supports-color@5.5.0)
@@ -1523,6 +1937,14 @@ snapshots:
 
   setprototypeof@1.2.0: {}
 
+  shelljs.exec@1.1.8: {}
+
+  shelljs@0.8.5:
+    dependencies:
+      glob: 7.2.3
+      interpret: 1.4.0
+      rechoir: 0.6.2
+
   side-channel-list@1.0.0:
     dependencies:
       es-errors: 1.3.0
@@ -1565,6 +1987,12 @@ snapshots:
     dependencies:
       has-flag: 3.0.0
 
+  supports-color@7.2.0:
+    dependencies:
+      has-flag: 4.0.0
+
+  supports-preserve-symlinks-flag@1.0.0: {}
+
   to-regex-range@5.0.1:
     dependencies:
       is-number: 7.0.0
@@ -1606,6 +2034,10 @@ snapshots:
       media-typer: 1.1.0
       mime-types: 3.0.1
 
+  typeid-js@1.2.0:
+    dependencies:
+      uuid: 10.0.0
+
   typescript@5.9.3: {}
 
   undefsafe@2.0.5: {}
@@ -1614,6 +2046,8 @@ snapshots:
 
   unpipe@1.0.0: {}
 
+  uuid@10.0.0: {}
+
   v8-compile-cache-lib@3.0.1: {}
 
   vary@1.1.2: {}

backend/diachron/routing.ts

@@ -0,0 +1,93 @@
+import { contentTypes } from "./content-types";
+import { httpCodes } from "./http-codes";
+import express, {
+    type NextFunction,
+    type Request as ExpressRequest,
+    type Response as ExpressResponse,
+} from "express";
+
+import {isRedirect,     InternalHandler,    AuthenticationRequired,
+    AuthorizationDenied, Call,type Method, type ProcessedRoute,methodParser, type Result, type Route,massageMethod } from "./types";
+import { runWithContext } from "./context";
+import { Session } from "./auth";import { request } from "./request";
+import { match } from "path-to-regexp";
+
+type ProcessedRoutes= {[K in Method]: ProcessedRoute[] }
+const processRoutes=(routes:Route[]) :ProcessedRoutes => {
+    const    retval:ProcessedRoutes= {
+        GET: [],
+        POST: [],
+        PUT: [],
+        PATCH: [],
+        DELETE: [],
+    };
+
+    routes.forEach((route: Route, _idx: number, _allRoutes: Route[]) => {
+        // const pattern /*: URLPattern */ = new URLPattern({ pathname: route.path });
+        const matcher = match<Record<string, string>>(route.path);
+        const methodList = route.methods;
+        
+        const handler: InternalHandler = async (
+            expressRequest: ExpressRequest,
+        ): Promise<Result> => {
+            const method = massageMethod(expressRequest.method);
+            
+            console.log("method", method);
+            
+            if (!methodList.includes(method)) {
+                // XXX: Worth asserting this?
+            }
+            
+            console.log("request.originalUrl", expressRequest.originalUrl);
+            
+            // Authenticate the request
+            const auth = await request.auth.validateRequest(expressRequest);
+            
+            const req: Call = {
+                pattern: route.path,
+                path: expressRequest.originalUrl,
+                method,
+                parameters: { one: 1, two: 2 },
+                request: expressRequest,
+                user: auth.user,
+                session: new Session(auth.session, auth.user),
+            };
+            
+            try {
+                const retval = await runWithContext({ user: auth.user }, () =>
+                    route.handler(req),
+                );
+                return retval;
+            } catch (error) {
+                // Handle authentication errors
+                if (error instanceof AuthenticationRequired) {
+                    return {
+                        code: httpCodes.clientErrors.Unauthorized,
+                        contentType: contentTypes.application.json,
+                        result: JSON.stringify({
+                            error: "Authentication required",
+                        }),
+                    };
+                }
+                if (error instanceof AuthorizationDenied) {
+                    return {
+                        code: httpCodes.clientErrors.Forbidden,
+                        contentType: contentTypes.application.json,
+                        result: JSON.stringify({ error: "Access denied" }),
+                    };
+                }
+                throw error;
+            }
+        };
+        
+        for (const [_idx, method] of methodList.entries()) {
+            const pr: ProcessedRoute = { matcher, method, handler };
+            
+          retval[method].push(pr);
+        }
+    });
+    
+    return retval;
+}
+
+export{processRoutes}

backend/diachron/types.spec.ts

@@ -0,0 +1,179 @@
+// Tests for types.ts
+// Pure unit tests
+
+import assert from "node:assert/strict";
+import { describe, it } from "node:test";
+import type { Request as ExpressRequest } from "express";
+import { Session } from "./auth/types";
+import { contentTypes } from "./content-types";
+import { httpCodes } from "./http-codes";
+import {
+    AuthenticationRequired,
+    AuthorizationDenied,
+    type Call,
+    isRedirect,
+    massageMethod,
+    methodParser,
+    type Permission,
+    type RedirectResult,
+    type Result,
+    requireAuth,
+    requirePermission,
+} from "./types";
+import { AuthenticatedUser, anonymousUser } from "./user";
+
+// Helper to create a minimal mock Call
+function createMockCall(overrides: Partial<Call> = {}): Call {
+    const defaultSession = new Session(null, anonymousUser);
+    return {
+        pattern: "/test",
+        path: "/test",
+        method: "GET",
+        parameters: {},
+        request: {} as ExpressRequest,
+        user: anonymousUser,
+        session: defaultSession,
+        ...overrides,
+    };
+}
+
+describe("types", () => {
+    describe("methodParser", () => {
+        it("accepts valid HTTP methods", () => {
+            assert.equal(methodParser.parse("GET"), "GET");
+            assert.equal(methodParser.parse("POST"), "POST");
+            assert.equal(methodParser.parse("PUT"), "PUT");
+            assert.equal(methodParser.parse("PATCH"), "PATCH");
+            assert.equal(methodParser.parse("DELETE"), "DELETE");
+        });
+
+        it("rejects invalid methods", () => {
+            assert.throws(() => methodParser.parse("get"));
+            assert.throws(() => methodParser.parse("OPTIONS"));
+            assert.throws(() => methodParser.parse("HEAD"));
+            assert.throws(() => methodParser.parse(""));
+        });
+    });
+
+    describe("massageMethod", () => {
+        it("converts lowercase to uppercase", () => {
+            assert.equal(massageMethod("get"), "GET");
+            assert.equal(massageMethod("post"), "POST");
+            assert.equal(massageMethod("put"), "PUT");
+            assert.equal(massageMethod("patch"), "PATCH");
+            assert.equal(massageMethod("delete"), "DELETE");
+        });
+
+        it("handles mixed case", () => {
+            assert.equal(massageMethod("Get"), "GET");
+            assert.equal(massageMethod("pOsT"), "POST");
+        });
+
+        it("throws for invalid methods", () => {
+            assert.throws(() => massageMethod("options"));
+            assert.throws(() => massageMethod("head"));
+        });
+    });
+
+    describe("isRedirect", () => {
+        it("returns true for redirect results", () => {
+            const result: RedirectResult = {
+                code: httpCodes.redirection.Found,
+                contentType: contentTypes.text.html,
+                result: "",
+                redirect: "/other",
+            };
+            assert.equal(isRedirect(result), true);
+        });
+
+        it("returns false for non-redirect results", () => {
+            const result: Result = {
+                code: httpCodes.success.OK,
+                contentType: contentTypes.text.html,
+                result: "hello",
+            };
+            assert.equal(isRedirect(result), false);
+        });
+    });
+
+    describe("AuthenticationRequired", () => {
+        it("has correct name and message", () => {
+            const err = new AuthenticationRequired();
+            assert.equal(err.name, "AuthenticationRequired");
+            assert.equal(err.message, "Authentication required");
+        });
+
+        it("is an instance of Error", () => {
+            const err = new AuthenticationRequired();
+            assert.ok(err instanceof Error);
+        });
+    });
+
+    describe("AuthorizationDenied", () => {
+        it("has correct name and message", () => {
+            const err = new AuthorizationDenied();
+            assert.equal(err.name, "AuthorizationDenied");
+            assert.equal(err.message, "Authorization denied");
+        });
+
+        it("is an instance of Error", () => {
+            const err = new AuthorizationDenied();
+            assert.ok(err instanceof Error);
+        });
+    });
+
+    describe("requireAuth", () => {
+        it("returns user for authenticated call", () => {
+            const user = AuthenticatedUser.create("test@example.com");
+            const session = new Session(null, user);
+            const call = createMockCall({ user, session });
+
+            const result = requireAuth(call);
+            assert.equal(result, user);
+        });
+
+        it("throws AuthenticationRequired for anonymous user", () => {
+            const call = createMockCall({ user: anonymousUser });
+
+            assert.throws(() => requireAuth(call), AuthenticationRequired);
+        });
+    });
+
+    describe("requirePermission", () => {
+        it("returns user when they have the permission", () => {
+            const user = AuthenticatedUser.create("test@example.com", {
+                permissions: ["posts:create" as Permission],
+            });
+            const session = new Session(null, user);
+            const call = createMockCall({ user, session });
+
+            const result = requirePermission(
+                call,
+                "posts:create" as Permission,
+            );
+            assert.equal(result, user);
+        });
+
+        it("throws AuthenticationRequired for anonymous user", () => {
+            const call = createMockCall({ user: anonymousUser });
+
+            assert.throws(
+                () => requirePermission(call, "posts:create" as Permission),
+                AuthenticationRequired,
+            );
+        });
+
+        it("throws AuthorizationDenied when missing permission", () => {
+            const user = AuthenticatedUser.create("test@example.com", {
+                permissions: ["posts:read" as Permission],
+            });
+            const session = new Session(null, user);
+            const call = createMockCall({ user, session });
+
+            assert.throws(
+                () => requirePermission(call, "posts:create" as Permission),
+                AuthorizationDenied,
+            );
+        });
+    });
+});

backend/diachron/user.spec.ts

@@ -0,0 +1,213 @@
+// Tests for user.ts
+// These are pure unit tests - no database needed
+
+import assert from "node:assert/strict";
+import { describe, it } from "node:test";
+import {
+    AnonymousUser,
+    AuthenticatedUser,
+    anonymousUser,
+    type Permission,
+    type Role,
+} from "./user";
+
+describe("User", () => {
+    describe("AuthenticatedUser.create", () => {
+        it("creates a user with default values", () => {
+            const user = AuthenticatedUser.create("test@example.com");
+
+            assert.equal(user.email, "test@example.com");
+            assert.equal(user.status, "active");
+            assert.equal(user.isAnonymous(), false);
+            assert.deepEqual([...user.roles], []);
+            assert.deepEqual([...user.permissions], []);
+        });
+
+        it("creates a user with custom values", () => {
+            const user = AuthenticatedUser.create("test@example.com", {
+                id: "custom-id",
+                displayName: "Test User",
+                status: "pending",
+                roles: ["admin"],
+                permissions: ["posts:create"],
+            });
+
+            assert.equal(user.id, "custom-id");
+            assert.equal(user.displayName, "Test User");
+            assert.equal(user.status, "pending");
+            assert.deepEqual([...user.roles], ["admin"]);
+            assert.deepEqual([...user.permissions], ["posts:create"]);
+        });
+    });
+
+    describe("status checks", () => {
+        it("isActive returns true for active users", () => {
+            const user = AuthenticatedUser.create("test@example.com", {
+                status: "active",
+            });
+            assert.equal(user.isActive(), true);
+        });
+
+        it("isActive returns false for suspended users", () => {
+            const user = AuthenticatedUser.create("test@example.com", {
+                status: "suspended",
+            });
+            assert.equal(user.isActive(), false);
+        });
+
+        it("isActive returns false for pending users", () => {
+            const user = AuthenticatedUser.create("test@example.com", {
+                status: "pending",
+            });
+            assert.equal(user.isActive(), false);
+        });
+    });
+
+    describe("role checks", () => {
+        it("hasRole returns true when user has the role", () => {
+            const user = AuthenticatedUser.create("test@example.com", {
+                roles: ["admin", "editor"],
+            });
+            assert.equal(user.hasRole("admin"), true);
+            assert.equal(user.hasRole("editor"), true);
+        });
+
+        it("hasRole returns false when user does not have the role", () => {
+            const user = AuthenticatedUser.create("test@example.com", {
+                roles: ["user"],
+            });
+            assert.equal(user.hasRole("admin"), false);
+        });
+
+        it("hasAnyRole returns true when user has at least one role", () => {
+            const user = AuthenticatedUser.create("test@example.com", {
+                roles: ["editor"],
+            });
+            assert.equal(user.hasAnyRole(["admin", "editor"]), true);
+        });
+
+        it("hasAnyRole returns false when user has none of the roles", () => {
+            const user = AuthenticatedUser.create("test@example.com", {
+                roles: ["user"],
+            });
+            assert.equal(user.hasAnyRole(["admin", "editor"]), false);
+        });
+
+        it("hasAllRoles returns true when user has all roles", () => {
+            const user = AuthenticatedUser.create("test@example.com", {
+                roles: ["admin", "editor", "user"],
+            });
+            assert.equal(user.hasAllRoles(["admin", "editor"]), true);
+        });
+
+        it("hasAllRoles returns false when user is missing a role", () => {
+            const user = AuthenticatedUser.create("test@example.com", {
+                roles: ["admin"],
+            });
+            assert.equal(user.hasAllRoles(["admin", "editor"]), false);
+        });
+    });
+
+    describe("permission checks", () => {
+        it("hasPermission returns true for direct permissions", () => {
+            const user = AuthenticatedUser.create("test@example.com", {
+                permissions: ["posts:create" as Permission],
+            });
+            assert.equal(
+                user.hasPermission("posts:create" as Permission),
+                true,
+            );
+        });
+
+        it("hasPermission returns true for role-derived permissions", () => {
+            const user = AuthenticatedUser.create("test@example.com", {
+                roles: ["admin" as Role],
+            });
+            // admin role has users:read, users:create, users:update, users:delete
+            assert.equal(user.hasPermission("users:read" as Permission), true);
+            assert.equal(
+                user.hasPermission("users:delete" as Permission),
+                true,
+            );
+        });
+
+        it("hasPermission returns false when permission not granted", () => {
+            const user = AuthenticatedUser.create("test@example.com", {
+                roles: ["user" as Role],
+            });
+            // user role only has users:read
+            assert.equal(
+                user.hasPermission("users:delete" as Permission),
+                false,
+            );
+        });
+
+        it("can() is a convenience method for hasPermission", () => {
+            const user = AuthenticatedUser.create("test@example.com", {
+                roles: ["admin" as Role],
+            });
+            assert.equal(user.can("read", "users"), true);
+            assert.equal(user.can("delete", "users"), true);
+            assert.equal(user.can("create", "posts"), false);
+        });
+    });
+
+    describe("effectivePermissions", () => {
+        it("returns combined direct and role-derived permissions", () => {
+            const user = AuthenticatedUser.create("test@example.com", {
+                roles: ["user" as Role],
+                permissions: ["posts:create" as Permission],
+            });
+
+            const perms = user.effectivePermissions();
+            assert.equal(perms.has("posts:create" as Permission), true);
+            assert.equal(perms.has("users:read" as Permission), true); // from user role
+        });
+
+        it("returns empty set for user with no roles or permissions", () => {
+            const user = AuthenticatedUser.create("test@example.com");
+            const perms = user.effectivePermissions();
+            assert.equal(perms.size, 0);
+        });
+    });
+
+    describe("serialization", () => {
+        it("toJSON returns plain object", () => {
+            const user = AuthenticatedUser.create("test@example.com", {
+                id: "test-id",
+                displayName: "Test",
+                status: "active",
+                roles: ["admin"],
+                permissions: ["posts:create"],
+            });
+
+            const json = user.toJSON();
+            assert.equal(json.id, "test-id");
+            assert.equal(json.email, "test@example.com");
+            assert.equal(json.displayName, "Test");
+            assert.equal(json.status, "active");
+            assert.deepEqual(json.roles, ["admin"]);
+            assert.deepEqual(json.permissions, ["posts:create"]);
+        });
+
+        it("toString returns readable string", () => {
+            const user = AuthenticatedUser.create("test@example.com", {
+                id: "test-id",
+            });
+            assert.equal(user.toString(), "User(id test-id)");
+        });
+    });
+
+    describe("AnonymousUser", () => {
+        it("isAnonymous returns true", () => {
+            const user = AnonymousUser.create("anon@example.com");
+            assert.equal(user.isAnonymous(), true);
+        });
+
+        it("anonymousUser singleton is anonymous", () => {
+            assert.equal(anonymousUser.isAnonymous(), true);
+            assert.equal(anonymousUser.id, "-1");
+            assert.equal(anonymousUser.email, "anonymous@example.com");
+        });
+    });
+});

backend/diachron/util.spec.ts

@@ -0,0 +1,61 @@
+// Tests for util.ts
+// Pure unit tests with filesystem
+
+import assert from "node:assert/strict";
+import { mkdir, rm, writeFile } from "node:fs/promises";
+import { join } from "node:path";
+import { after, before, describe, it } from "node:test";
+import { loadFile } from "./util";
+
+describe("util", () => {
+    const testDir = join(import.meta.dirname, ".test-util-tmp");
+
+    before(async () => {
+        await mkdir(testDir, { recursive: true });
+    });
+
+    after(async () => {
+        await rm(testDir, { recursive: true, force: true });
+    });
+
+    describe("loadFile", () => {
+        it("loads file contents as string", async () => {
+            const testFile = join(testDir, "test.txt");
+            await writeFile(testFile, "hello world");
+
+            const content = await loadFile(testFile);
+            assert.equal(content, "hello world");
+        });
+
+        it("handles utf-8 content", async () => {
+            const testFile = join(testDir, "utf8.txt");
+            await writeFile(testFile, "hello \u{1F511} world");
+
+            const content = await loadFile(testFile);
+            assert.equal(content, "hello \u{1F511} world");
+        });
+
+        it("handles empty file", async () => {
+            const testFile = join(testDir, "empty.txt");
+            await writeFile(testFile, "");
+
+            const content = await loadFile(testFile);
+            assert.equal(content, "");
+        });
+
+        it("handles multiline content", async () => {
+            const testFile = join(testDir, "multiline.txt");
+            await writeFile(testFile, "line1\nline2\nline3");
+
+            const content = await loadFile(testFile);
+            assert.equal(content, "line1\nline2\nline3");
+        });
+
+        it("throws for nonexistent file", async () => {
+            await assert.rejects(
+                loadFile(join(testDir, "nonexistent.txt")),
+                /ENOENT/,
+            );
+        });
+    });
+});

backend/generated/db.d.ts

@@ -0,0 +1,109 @@
+/**
+ * This file was generated by kysely-codegen.
+ * Please do not edit it manually.
+ */
+
+import type { ColumnType } from "kysely";
+
+export type Generated<T> =
+    T extends ColumnType<infer S, infer I, infer U>
+        ? ColumnType<S, I | undefined, U>
+        : ColumnType<T, T | undefined, T>;
+
+export type Timestamp = ColumnType<Date, Date | string, Date | string>;
+
+export interface _Migrations {
+    applied_at: Generated<Timestamp>;
+    id: Generated<number>;
+    name: string;
+}
+
+export interface Capabilities {
+    description: string | null;
+    id: string;
+    name: string;
+}
+
+export interface Groups {
+    created_at: Generated<Timestamp>;
+    id: string;
+    name: string;
+}
+
+export interface RoleCapabilities {
+    capability_id: string;
+    granted_at: Generated<Timestamp>;
+    revoked_at: Timestamp | null;
+    role_id: string;
+}
+
+export interface Roles {
+    description: string | null;
+    id: string;
+    name: string;
+}
+
+export interface Sessions {
+    auth_method: string;
+    created_at: Generated<Timestamp>;
+    expires_at: Timestamp;
+    id: Generated<string>;
+    ip_address: string | null;
+    is_used: Generated<boolean | null>;
+    revoked_at: Timestamp | null;
+    token_hash: string;
+    token_type: string;
+    user_agent: string | null;
+    user_email_id: string | null;
+    user_id: string;
+}
+
+export interface UserCredentials {
+    created_at: Generated<Timestamp>;
+    credential_type: Generated<string>;
+    id: string;
+    password_hash: string | null;
+    updated_at: Generated<Timestamp>;
+    user_id: string;
+}
+
+export interface UserEmails {
+    created_at: Generated<Timestamp>;
+    email: string;
+    id: string;
+    is_primary: Generated<boolean>;
+    is_verified: Generated<boolean>;
+    normalized_email: string;
+    revoked_at: Timestamp | null;
+    user_id: string;
+    verified_at: Timestamp | null;
+}
+
+export interface UserGroupRoles {
+    granted_at: Generated<Timestamp>;
+    group_id: string;
+    revoked_at: Timestamp | null;
+    role_id: string;
+    user_id: string;
+}
+
+export interface Users {
+    created_at: Generated<Timestamp>;
+    display_name: string | null;
+    id: string;
+    status: Generated<string>;
+    updated_at: Generated<Timestamp>;
+}
+
+export interface DB {
+    _migrations: _Migrations;
+    capabilities: Capabilities;
+    groups: Groups;
+    role_capabilities: RoleCapabilities;
+    roles: Roles;
+    sessions: Sessions;
+    user_credentials: UserCredentials;
+    user_emails: UserEmails;
+    user_group_roles: UserGroupRoles;
+    users: Users;
+}

backend/handlers.spec.ts

@@ -0,0 +1,71 @@
+// Tests for handlers.ts
+// These tests use mock Call objects
+
+import assert from "node:assert/strict";
+import { describe, it } from "node:test";
+import type { Request as ExpressRequest } from "express";
+import { Session } from "./diachron/auth/types";
+import { contentTypes } from "./diachron/content-types";
+import { multiHandler } from "./handlers";
+import { httpCodes } from "./diachron/http-codes";
+import type { Call } from "./diachron/types";
+import { anonymousUser } from "./diachron/user";
+
+// Helper to create a minimal mock Call
+function createMockCall(overrides: Partial<Call> = {}): Call {
+    const defaultSession = new Session(null, anonymousUser);
+    return {
+        pattern: "/test",
+        path: "/test",
+        method: "GET",
+        parameters: {},
+        request: {} as ExpressRequest,
+        user: anonymousUser,
+        session: defaultSession,
+        ...overrides,
+    };
+}
+
+describe("handlers", () => {
+    describe("multiHandler", () => {
+        it("returns OK status", async () => {
+            const call = createMockCall({ method: "GET" });
+            const result = await multiHandler(call);
+
+            assert.equal(result.code, httpCodes.success.OK);
+        });
+
+        it("returns text/plain content type", async () => {
+            const call = createMockCall();
+            const result = await multiHandler(call);
+
+            assert.equal(result.contentType, contentTypes.text.plain);
+        });
+
+        it("includes method in result", async () => {
+            const call = createMockCall({ method: "POST" });
+            const result = await multiHandler(call);
+
+            assert.ok(result.result.includes("POST"));
+        });
+
+        it("includes a random number in result", async () => {
+            const call = createMockCall();
+            const result = await multiHandler(call);
+
+            // Result format: "that was GET (0.123456789)"
+            assert.match(result.result, /that was \w+ \(\d+\.?\d*\)/);
+        });
+
+        it("works with different HTTP methods", async () => {
+            const methods = ["GET", "POST", "PUT", "PATCH", "DELETE"] as const;
+
+            for (const method of methods) {
+                const call = createMockCall({ method });
+                const result = await multiHandler(call);
+
+                assert.ok(result.result.includes(method));
+            }
+        });
+    });
+});

backend/handlers.ts

@@ -1,7 +1,9 @@
-import { contentTypes } from "./content-types";
-import { core } from "./core";
-import { httpCodes } from "./http-codes";
-import type { Call, Handler, Result } from "./types";
+// This is a sample file provided by diachron.  You are encouraged to modify it.
+
+import { contentTypes } from "./diachron/content-types";
+import { core } from "./diachron/core";
+import { httpCodes } from "./diachron/http-codes";
+import type { Call, Handler, Result } from "./diachron/types";
 
 const multiHandler: Handler = async (call: Call): Promise<Result> => {
     const code = httpCodes.success.OK;

backend/migrations/2026-01-15_01-create-test-application-table.sql

@@ -0,0 +1 @@
+CREATE TABLE test_application_table ();

backend/migrations/2026-01-15_01.sql

@@ -0,0 +1 @@
+CREATE TABLE test_application_table ();

backend/package.json

@@ -0,0 +1,21 @@
+{
+    "name": "my app",
+    "version": "0.0.1",
+    "description": "",
+    "main": "index.js",
+    "scripts": {
+        "test": "DB_PORT=5433 DB_USER=diachron_test DB_PASSWORD=diachron_test DB_NAME=diachron_test tsx --test '**/*.{test,spec}.ts'",
+        "test:watch": "DB_PORT=5433 DB_USER=diachron_test DB_PASSWORD=diachron_test DB_NAME=diachron_test tsx --test --watch '**/*.{test,spec}.ts'",
+        "nodemon": "nodemon dist/index.js",
+        "kysely-codegen": "kysely-codegen"
+    },
+    "keywords": [],
+    "author": "",
+    "license": "ISC",
+    "packageManager": "pnpm@10.12.4",
+    "dependencies": {
+        "diachron": "workspace:*"
+    },
+    "devDependencies": {
+    }
+}

backend/pnpm-workspace.yaml

@@ -0,0 +1,2 @@
+packages:
+  - 'diachron'

backend/routes.ts

@@ -1,14 +1,16 @@
+// This is a sample file provided by diachron.  You are encouraged to modify it.
+
 /// <reference lib="dom" />
 
 import nunjucks from "nunjucks";
 import { DateTime } from "ts-luxon";
-import { authRoutes } from "./auth/routes";
-import { routes as basicRoutes } from "./basic/routes";
-import { contentTypes } from "./content-types";
-import { core } from "./core";
+import { authRoutes } from "./diachron/auth/routes";
+import { routes as basicRoutes } from "./diachron/basic/routes";
+import { contentTypes } from "./diachron/content-types";
+import { core } from "./diachron/core";
 import { multiHandler } from "./handlers";
-import { httpCodes } from "./http-codes";
-import type { Call, Result, Route } from "./types";
+import { httpCodes } from "./diachron/http-codes";
+import type { Call, Result, Route } from "./diachron/types";
 
 // FIXME: Obviously put this somewhere else
 const okText = (result: string): Result => {
@@ -27,6 +29,9 @@ const routes: Route[] = [
     ...authRoutes,
     basicRoutes.home,
     basicRoutes.hello,
+    {...basicRoutes.hello,
+     path: "/yo-whats-up"
+},
     basicRoutes.login,
     basicRoutes.logout,
     {
@@ -35,7 +40,7 @@ const routes: Route[] = [
         handler: async (_call: Call): Promise<Result> => {
             console.log("starting slow request");
 
-            await core.misc.sleep(2);
+            await core.misc.sleep(5000);
 
             console.log("finishing slow request");
             const retval = okText("that was slow");
@@ -72,7 +77,6 @@ const routes: Route[] = [
 `;
             const result = nunjucks.renderString(template, { rrr });
 
-            const _listing = lr(routes).join(", ");
             return {
                 code,
                 result,

backend/run.sh

@@ -6,4 +6,4 @@ DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 
 cd "$DIR"
 
-exec ../cmd node dist/index.js "$@"
+exec ../cmd node --enable-source-maps dist/index.js "$@"

backend/services.ts

@@ -0,0 +1,15 @@
+// This is a sample file provided by diachron.  You are encouraged to modify it.
+
+// Application services go here.  A service encapsulates a capability that
+// handlers depend on: database queries, external API calls, business logic
+// that doesn't belong in a handler.
+//
+// The framework provides core services via `core` (from ./diachron/core):
+// core.database, core.logging, core.misc, etc.  This file is for your
+// application's own services.
+
+import { core } from "./diachron/core";
+
+const db = core.database.db;
+
+export { db };

backend/show-config.sh

@@ -6,7 +6,7 @@ DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 
 check_dir="$DIR"
 
-source "$check_dir"/../framework/shims/common
-source "$check_dir"/../framework/shims/node.common
+source "$check_dir"/../diachron/shims/common
+source "$check_dir"/../diachron/shims/node.common
 
 $ROOT/cmd pnpm tsc --showConfig

backend/tsconfig.json

@@ -9,5 +9,6 @@
         "strict": true,
         "types": ["node"],
         "outDir": "out"
-    }
+    },
+    "exclude": ["**/*.spec.ts", "**/*.test.ts", "check-deps.ts"]
 }

backend/types.ts

@@ -0,0 +1,8 @@
+// This is a sample file provided by diachron.  You are encouraged to modify it.
+
+// Application-specific types go here.  Framework types (Call, Result, Route,
+// Handler, etc.) are defined in ./diachron/types and should be imported from
+// there.
+//
+// This file is for your domain types: the nouns and shapes that are specific
+// to your application.

backend/watch.sh

@@ -6,8 +6,8 @@ DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 
 check_dir="$DIR"
 
-source "$check_dir"/../framework/shims/common
-source "$check_dir"/../framework/shims/node.common
+source "$check_dir"/../diachron/shims/common
+source "$check_dir"/../diachron/shims/node.common
 
 # $ROOT/cmd pnpm tsc --lib ES2023  --esModuleInterop -w $check_dir/app.ts
 # $ROOT/cmd pnpm tsc -w $check_dir/app.ts

bootstrap.sh

@@ -0,0 +1,49 @@
+#!/bin/bash
+# shellcheck disable=SC2002
+
+set -eu
+set -o pipefail
+IFS=$'\n\t'
+
+# print useful message on failure
+trap 's=$?; echo >&2 "$0: Error on line "$LINENO": $BASH_COMMAND"; exit $s' ERR
+
+# shellcheck disable=SC2034
+DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+# cd "$DIR"
+here="$PWD"
+
+"$DIR/update-cached-repository.sh"
+
+# repository="${2:-https://gitea.philologue.net/philologue/diachron}"
+repository="${2:-$HOME/.cache/diachron/v1/repositories/diachron.git}"
+ref="${1:-hydrators-kysely}"
+
+echo will bootstrap ref "$ref" of repo "$repository"
+
+into=$(mktemp -d)
+cd "$into"
+echo I am in $(pwd)
+echo I will clone repository "$repository", ref "$ref"
+git clone "$repository"
+
+r=$(ls -1)
+
+cd "$r"
+
+echo I am in $(pwd)
+
+git checkout "$ref"
+
+ls
+echo working dir: $PWD
+# ls backend
+
+# exit 0
+
+tar cvf - $(cat "$PWD/file-list" | grep -v '^#') | (cd "$here" && tar xf -)
+
+echo "$ref" > .diachron-version
+
+echo "Now, run the command ./sync.sh"

check.sh

@@ -10,7 +10,7 @@ cd "$DIR"
 #
 exclusions="SC2002"
 
-source "$DIR/framework/versions"
+source "$DIR/diachron/versions"
 
 if [[ $# -ne 0 ]]; then
     shellcheck --exclude="$exclusions" "$@"
@@ -20,10 +20,10 @@ fi
 shell_scripts="$(fd .sh | xargs)"
 
 # The files we need to check all either end in .sh or else they're the files
-# in framework/cmd.d and framework/shims.  -x instructs shellcheck to also
+# in diachron/cmd.d and diachron/shims.  -x instructs shellcheck to also
 # check `source`d files.
 
-shellcheck -x --exclude="$exclusions" "$DIR/cmd" "$DIR"/framework/cmd.d/* "$DIR"/framework/shims/* "$shell_scripts"
+shellcheck -x --exclude="$exclusions" "$DIR/cmd" "$DIR"/diachron/cmd.d/* "$DIR"/diachron/shims/* "$shell_scripts"
 
 pushd "$DIR/master"
 docker run --rm -v $(pwd):/app -w /app golangci/golangci-lint:$golangci_lint golangci-lint run

cmd

@@ -13,7 +13,7 @@ if [ $# -lt 1 ]; then
     echo "Usage: ./cmd <command> [args...]"
     echo ""
     echo "Available commands:"
-    for cmd in "$DIR"/framework/cmd.d/*; do
+    for cmd in "$DIR"/diachron/cmd.d/*; do
         if [ -x "$cmd" ]; then
             basename "$cmd"
         fi
@@ -24,4 +24,4 @@ fi
 subcmd="$1"
 shift
 
-exec "$DIR"/framework/cmd.d/"$subcmd" "$@"
+exec "$DIR"/diachron/cmd.d/"$subcmd" "$@"

develop

@@ -13,7 +13,7 @@ if [ $# -lt 1 ]; then
     echo "Usage: ./develop <command> [args...]"
     echo ""
     echo "Available commands:"
-    for cmd in "$DIR"/framework/develop.d/*; do
+    for cmd in "$DIR"/diachron/develop.d/*; do
         if [ -x "$cmd" ]; then
             basename "$cmd"
         fi
@@ -24,4 +24,4 @@ fi
 subcmd="$1"
 shift
 
-exec "$DIR"/framework/develop.d/"$subcmd" "$@"
+exec "$DIR"/diachron/develop.d/"$subcmd" "$@"

diachron/AGENTS.md

@@ -0,0 +1,191 @@
+# Working with diachron (Agent Guide)
+
+This document helps AI coding agents work effectively with projects built on
+the diachron framework.  It covers the conventions, commands, and structures
+you need to know.
+
+## Quick orientation
+
+diachron is a TypeScript/Express web framework with a Go master process.
+Your application code lives in `backend/`.  The framework owns `master/`,
+`logger/`, `diachron/`, and `backend/diachron/`.
+
+**Do not modify framework-owned files** unless explicitly asked to work on
+the framework itself.
+
+## Running the application
+
+```bash
+./sync.sh       # Install dependencies (run once, or after pulling changes)
+./master        # Start the application (watches files, rebuilds, proxies)
+```
+
+By default, the app listens on port 8080 (proxy) and workers run on
+ports starting at 3000.
+
+## Commands you'll need
+
+All tools (node, pnpm, tsx, etc.) are managed by the framework.  Do not
+invoke system-installed versions.
+
+```bash
+./cmd pnpm install          # Install npm packages
+./cmd pnpm test             # Run tests
+./cmd pnpm biome check .    # Lint (run from backend/)
+./develop db                # Open database shell
+./develop reset-db          # Drop and recreate database
+./develop migrate           # Run migrations (development)
+./mgmt migrate              # Run migrations (production-safe)
+```
+
+### Formatting and linting
+
+```bash
+cd backend && ../cmd pnpm biome check --write .
+```
+
+### Building Go code
+
+```bash
+cd master && go build
+cd logger && go build
+```
+
+### Quality checks
+
+```bash
+./check.sh                  # shellcheck + golangci-lint
+```
+
+## Application structure
+
+### Where to put code
+
+| What                     | Where                       |
+|--------------------------|-----------------------------|
+| Application entry point  | `backend/app.ts`            |
+| Route definitions        | `backend/routes.ts`         |
+| Route handlers           | `backend/handlers.ts`       |
+| Service layer            | `backend/services.ts`       |
+| Application types        | `backend/types.ts`          |
+| Application config       | `backend/config.ts`         |
+| Database migrations      | `backend/migrations/`       |
+| Framework library code   | `backend/diachron/`         |
+
+### Types and naming
+
+- HTTP request wrapper: `Call` (not Request)
+- HTTP response wrapper: `Result` (not Response)
+- Route definitions: arrays of `Route` objects
+- Handlers: functions that take a `Call` and return a `Result`
+
+These names are intentional.  Use them consistently.
+
+Import framework types from `./diachron/types`:
+
+```typescript
+import type { Call, Result, Route, Handler } from "./diachron/types";
+```
+
+Application-specific domain types go in `backend/types.ts`.
+
+### Services
+
+Application services go in `backend/services.ts`.  Framework services are
+accessed through the `core` object:
+
+```typescript
+import { core } from "./diachron/core";
+
+core.database.db     // Kysely database instance
+core.logging.log     // Logging
+core.misc.sleep      // Utilities
+```
+
+### Exports
+
+When a TypeScript file exports symbols, they should be listed in
+alphabetical order.
+
+## Database
+
+diachron uses PostgreSQL exclusively, accessed through Kysely (type-safe
+query builder).  There is no ORM.
+
+- Write SQL via Kysely, not raw query strings (unless Kysely can't express
+  the query)
+- Migrations live in `backend/migrations/`
+- Run `./develop codegen` after schema changes to regenerate Kysely types
+
+## Key conventions
+
+### No dev/prod distinction
+
+There is no `NODE_ENV`.  The application behaves identically everywhere.
+Do not introduce environment-based branching.
+
+### Managed tooling
+
+Never reference globally installed `node`, `npm`, `npx`, or `pnpm`.
+Always use `./cmd node`, `./cmd pnpm`, etc.
+
+### File ownership boundary
+
+```
+You may edit:          backend/* (except backend/diachron/)
+Do not edit:           master/*, logger/*, diachron/*, backend/diachron/*
+```
+
+If a task requires framework changes, confirm with the user first.
+
+### Command safety tiers
+
+- `./cmd` -- Tool wrappers, always safe
+- `./mgmt` -- Production-safe operations (migrations, user management)
+- `./develop` -- Destructive operations, development only
+
+Never use `./develop` commands against production data.
+
+## Common tasks
+
+### Add a new route
+
+1. Define the route in `backend/routes.ts` as a `Route` object
+2. Implement the handler in `backend/handlers.ts`
+3. Add any needed types to `backend/types.ts`
+
+### Add a database migration
+
+1. Create a migration file in `backend/migrations/`
+2. Run `./develop migrate` to apply it
+3. Run `./develop codegen` to regenerate Kysely types
+
+### Install a package
+
+```bash
+cd backend && ../cmd pnpm add <package>
+```
+
+### Run a one-off TypeScript script
+
+```bash
+./develop tsx backend/path/to/script.ts
+```
+
+## file-list
+
+The root `file-list` file is a manifest of all files that ship with the
+framework.  When you create or delete a file that is part of the project
+(not a scratch file or generated output), you must update `file-list` to
+match.  Keep it sorted alphabetically.
+
+## Things to avoid
+
+- Do not introduce `.env` files or `dotenv` without checking with the
+  team first.  The configuration story is still being decided.
+- Do not introduce webpack, vite, or other bundlers.  The master process
+  handles building via `@vercel/ncc`.
+- Do not add express middleware directly.  Use the framework's route
+  processing in `backend/diachron/routing.ts`.
+- Do not use `npm` or globally installed `pnpm`.  Use `./cmd pnpm`.
+- Do not add `NODE_ENV` checks or development/production branches.