Rename framework/ to diachron/ and update all references

Update paths in .gitignore, cmd, develop, mgmt, sync.sh, check.sh,
fixup.sh, CLAUDE.md, docs/new-project.md, and backend/*.sh scripts.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

diachron/cmd.d/list

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+set -eu
+
+DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+cd "$DIR"
+
+ls .

diachron/cmd.d/node

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+set -eu
+
+DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+exec "$DIR"/../shims/node "$@"

diachron/cmd.d/pnpm

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+set -eu
+
+DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+"$DIR"/../shims/pnpm "$@"

diachron/cmd.d/sync

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+set -eu
+
+DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+# figure out the platform we're on
+
+# source ../framework/versions
+# [eventually: check for it in user's cache dir
+# download $nodejs_version
+# verify its checksum against $nodejs_checksum
+
+cd "$DIR/../node"
+
+"$DIR"/pnpm install
+
+echo we will download other files here later

diachron/cmd.d/test

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+set -eu
+
+DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+cd "$DIR/../../express"
+
+if [ $# -eq 0 ]; then
+    # Find all test files - use -print0/xargs to handle filenames safely
+    find . -type f \( -name '*.spec.ts' -o -name '*.test.ts' \) -print0 | \
+        xargs -0 "$DIR"/../shims/pnpm tsx --test
+else
+    "$DIR"/../shims/pnpm tsx --test "$@"
+fi

diachron/cmd.d/ts-node

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+"$DIR"/../shims/pnpm ts-node "$@"

diachron/cmd.d/tsx

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+"$DIR"/../shims/pnpm tsx "$@"

diachron/common.d/db

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+set -eu
+
+DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+ROOT="$DIR/../.."
+
+# FIXME: don't hard code this of course
+PGPASSWORD=diachron psql -U diachron -h localhost diachron

diachron/common.d/migrate

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+set -eu
+
+DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+ROOT="$DIR/../.."
+
+cd "$ROOT/express"
+"$DIR"/tsx migrate.ts "$@"

diachron/develop.d/clear-db

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+# This file belongs to the framework.  You are not expected to modify it.
+
+set -eu
+
+DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+ROOT="$DIR/../.."
+
+cd "$ROOT/express"
+"$DIR"/../cmd.d/tsx develop/clear-db.ts "$@"

diachron/develop.d/db

@@ -0,0 +1 @@
+../common.d/db

diachron/develop.d/db-url

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+# This file belongs to the framework.  You are not expected to modify it.
+
+set -eu
+
+# FIXME: don't hard code this of course
+echo "postgres://diachron:diachron@localhost/diachron"

diachron/develop.d/migrate

@@ -0,0 +1 @@
+../common.d/migrate

diachron/develop.d/reset-db

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+set -eu
+
+DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+ROOT="$DIR/../.."
+
+cd "$ROOT/express"
+"$DIR"/../cmd.d/tsx develop/reset-db.ts "$@"

diachron/mgmt.d/add-user

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+set -eu
+
+DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+ROOT="$DIR/../.."
+
+cd "$ROOT/express"
+"$DIR"/../cmd.d/tsx mgmt/add-user.ts "$@"

diachron/mgmt.d/db

@@ -0,0 +1 @@
+../common.d/db

diachron/mgmt.d/migrate

@@ -0,0 +1 @@
+../common.d/migrate

diachron/platform

@@ -0,0 +1,26 @@
+# shellcheck shell=bash
+
+# Detect platform (OS and architecture)
+
+os=$(uname -s | tr '[:upper:]' '[:lower:]')
+arch=$(uname -m)
+
+case "$os" in
+    linux) platform_os=linux ;;
+    darwin) platform_os=darwin ;;
+    *) echo "Unsupported OS: $os" >&2; exit 1 ;;
+esac
+
+case "$arch" in
+    x86_64) platform_arch=x86_64 ;;
+    *) echo "Unsupported architecture: $arch" >&2; exit 1 ;;
+esac
+
+platform="${platform_os}_${platform_arch}"
+
+# Platform-specific checksum command
+if [ "$platform_os" = "darwin" ]; then
+    sha256_check() { shasum -a 256 -c -; }
+else
+    sha256_check() { sha256sum -c -; }
+fi

diachron/shims/common

@@ -0,0 +1,5 @@
+# Fix for https://www.shellcheck.net/wiki/SC2148
+# shellcheck shell=bash
+
+common_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+export ROOT="$common_DIR/../../"

diachron/shims/node

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+# This file belongs to the framework.  You are not expected to modify it.
+
+set -eu
+
+node_shim_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+# shellcheck source=node.common
+source "$node_shim_DIR"/node.common
+
+exec "$nodejs_binary_dir/node" "$@"

diachron/shims/node.common

@@ -0,0 +1,29 @@
+# Fix for https://www.shellcheck.net/wiki/SC2148
+# shellcheck shell=bash
+
+node_common_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+project_root="$node_common_DIR/../.."
+
+# shellcheck source=../versions
+source "$node_common_DIR"/../versions
+
+# shellcheck source=../platform
+source "$node_common_DIR"/../platform
+
+# Get platform-specific node directory
+nodejs_dirname_var="nodejs_dirname_${platform}"
+nodejs_dirname="${!nodejs_dirname_var}"
+nodejs_dist_dir="diachron/binaries/$nodejs_dirname"
+nodejs_bin_dir="$nodejs_dist_dir/bin"
+
+nodejs_binary_dir="$project_root/$nodejs_bin_dir"
+
+# This might be too restrictive.  Or not restrictive enough.
+PATH="$nodejs_binary_dir":/bin:/usr/bin
+
+node_dist_dir="$project_root/$nodejs_dist_dir"
+
+export NPM_CONFIG_PREFIX="$node_dist_dir/npm"
+export NPM_CONFIG_CACHE="$node_dist_dir/cache"
+export NPM_CONFIG_TMP="$node_dist_dir/tmp"
+export NODE_PATH="$node_dist_dir/node_modules"

diachron/shims/npm

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+set -eu
+
+npm_shim_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+export npm_shim_DIR
+
+# shellcheck source=node.common
+source "$npm_shim_DIR"/node.common
+
+cd "$npm_shim_DIR"/../.nodejs-config
+echo in dir "$(pwd)"
+npm "$@"

diachron/shims/pnpm

@@ -0,0 +1,16 @@
+#!/bin/bash
+
+set -eu
+
+pnpm_shim_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+export pnpm_shim_DIR
+
+# shellcheck source=./node.common
+source "$pnpm_shim_DIR"/node.common
+
+# shellcheck source=./common
+source "$pnpm_shim_DIR"/common
+
+# cd $ROOT/diachron/node
+
+exec "$pnpm_shim_DIR"/../binaries/pnpm "$@"

diachron/versions

@@ -0,0 +1,26 @@
+# shellcheck shell=bash
+
+# This file belongs to the framework.  You are not expected to modify it.
+
+nodejs_version=v24.12.0
+
+# https://nodejs.org/dist
+nodejs_binary_linux_x86_64=https://nodejs.org/dist/v24.12.0/node-v24.12.0-linux-x64.tar.xz
+nodejs_checksum_linux_x86_64=bdebee276e58d0ef5448f3d5ac12c67daa963dd5e0a9bb621a53d1cefbc852fd
+nodejs_dirname_linux_x86_64=node-v24.12.0-linux-x64
+
+nodejs_binary_darwin_x86_64=https://nodejs.org/dist/v24.12.0/node-v24.12.0-darwin-x64.tar.xz
+nodejs_checksum_darwin_x86_64=1e4d54f706e0a3613d6415ffe2ccdfd4095d3483971dbbaa4ff909fac5fc211c
+nodejs_dirname_darwin_x86_64=node-v24.12.0-darwin-x64
+
+caddy_binary_linux_x86_64=fixme
+caddy_checksum_linux_x86_64=fixmetoo
+
+# https://github.com/pnpm/pnpm/releases
+pnpm_binary_linux_x86_64=https://github.com/pnpm/pnpm/releases/download/v10.28.0/pnpm-linux-x64
+pnpm_checksum_linux_x86_64=348e863d17a62411a65f900e8d91395acabae9e9237653ccc3c36cb385965f28
+
+pnpm_binary_darwin_x86_64=https://github.com/pnpm/pnpm/releases/download/v10.28.0/pnpm-macos-x64
+pnpm_checksum_darwin_x86_64=99431e91d721169c2050d5e46abefc6f0d23c49e635a5964dcb573d9fe89975a
+
+golangci_lint=v2.7.2-alpine