Add comprehensive test suite for express modules

Tests for:
- user.ts: User class, roles, permissions, status checks
- util.ts: loadFile utility
- handlers.ts: multiHandler
- types.ts: methodParser, requireAuth, requirePermission
- logging.ts: module structure
- database.ts: connectionConfig, raw queries, PostgresAuthStore
- auth/token.ts: generateToken, hashToken, parseAuthorizationHeader
- auth/password.ts: hashPassword, verifyPassword (scrypt)
- auth/types.ts: Zod parsers, Session class, tokenLifetimes
- auth/store.ts: InMemoryAuthStore
- auth/service.ts: AuthService (login, register, verify, reset)
- basic/*.ts: route structure tests

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

express/package.json

@@ -4,8 +4,8 @@
     "description": "",
     "main": "index.js",
     "scripts": {
-        "test": "DB_PORT=5433 DB_USER=diachron_test DB_PASSWORD=diachron_test DB_NAME=diachron_test tsx --test 'framework/**/*.{test,spec}.ts'",
-        "test:watch": "DB_PORT=5433 DB_USER=diachron_test DB_PASSWORD=diachron_test DB_NAME=diachron_test tsx --test --watch 'framework/**/*.{test,spec}.ts'",
+        "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"
     },