Rebuild: fresh AdonisJS 7 API app on Postgres

The rebuild branch starts over (REBUILD.md): the API starter kit, with
Postgres instead of SQLite (its own database, DB_SEARCH_PATH for a
shared one in development) and the #lib alias. Phase 1's code is
imported from the current app module by module.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

config/database.ts

@@ -1,137 +1,36 @@
+import env from '#start/env'
 import app from '@adonisjs/core/services/app'
 import { defineConfig } from '@adonisjs/lucid'
-import env from '#start/env'
 
+/**
+ * The rebuild's own database (REBUILD.md, decision b), on the same server
+ * as the current indexer's.
+ */
 const dbConfig = defineConfig({
-  /**
-   * Default connection used for all queries.
-   */
-  connection: env.get('DB_CONNECTION', 'sqlite'),
-
+  connection: 'pg',
   connections: {
-    /**
-     * SQLite connection (default).
-     */
-    sqlite: {
-      client: 'better-sqlite3',
-
-      connection: {
-        filename: app.tmpPath('db.sqlite3'),
-      },
-
-      /**
-       * Required by Knex for SQLite defaults.
-       */
-      useNullAsDefault: true,
-
-      migrations: {
-        /**
-         * Sort migration files naturally by filename.
-         */
-        naturalSort: true,
-
-        /**
-         * Paths containing migration files.
-         */
-        paths: ['database/migrations'],
-      },
-
-      schemaGeneration: {
-        /**
-         * Enable schema generation from Lucid models.
-         */
-        enabled: true,
-
-        /**
-         * Custom schema rules file paths.
-         */
-        rulesPaths: ['./database/schema_rules.js'],
-      },
-    },
-
-    /**
-     * PostgreSQL connection.
-     * Install package to switch: npm install pg
-     */
     pg: {
       client: 'pg',
       connection: {
         host: env.get('DB_HOST'),
         port: env.get('DB_PORT'),
         user: env.get('DB_USER'),
-        password: env.get('DB_PASSWORD')?.release(),
+        password: env.get('DB_PASSWORD'),
         database: env.get('DB_DATABASE'),
-        // For idempotent bulk writers (worker:fetch): don't wait for the WAL
-        // flush on every statement. A crash loses the last moments of writes,
-        // which the retried job writes again.
-        ...(env.get('DB_SYNCHRONOUS_COMMIT') === 'off' ? { options: '-c synchronous_commit=off' } : {}),
       },
-      // One connection per concurrent job; knex defaults to 10.
+      // Local development may share a database, in its own schema (DB_SEARCH_PATH=rebuild).
+      ...(env.get('DB_SEARCH_PATH') ? { searchPath: env.get('DB_SEARCH_PATH')!.split(',') } : {}),
       pool: { min: 0, max: env.get('DB_POOL_MAX', 10) },
       migrations: {
         naturalSort: true,
         paths: ['database/migrations'],
       },
-      debug: app.inDev,
+      schemaGeneration: {
+        enabled: true,
+        rulesPaths: ['./database/schema_rules.js'],
+      },
+      debug: app.inDev && env.get('DB_DEBUG', false),
     },
-
-    /**
-     * MySQL / MariaDB connection.
-     * Install package to switch: npm install mysql2
-     */
-    // mysql: {
-    //   client: 'mysql2',
-    //   connection: {
-    //     host: env.get('DB_HOST'),
-    //     port: env.get('DB_PORT'),
-    //     user: env.get('DB_USER'),
-    //     password: env.get('DB_PASSWORD'),
-    //     database: env.get('DB_DATABASE'),
-    //   },
-    //   migrations: {
-    //     naturalSort: true,
-    //     paths: ['database/migrations'],
-    //   },
-    //   debug: app.inDev,
-    // },
-
-    /**
-     * Microsoft SQL Server connection.
-     * Install package to switch: npm install tedious
-     */
-    // mssql: {
-    //   client: 'mssql',
-    //   connection: {
-    //     server: env.get('DB_HOST'),
-    //     port: env.get('DB_PORT'),
-    //     user: env.get('DB_USER'),
-    //     password: env.get('DB_PASSWORD'),
-    //     database: env.get('DB_DATABASE'),
-    //   },
-    //   migrations: {
-    //     naturalSort: true,
-    //     paths: ['database/migrations'],
-    //   },
-    //   debug: app.inDev,
-    // },
-
-    /**
-     * libSQL (Turso) connection.
-     * Install package to switch: npm install @libsql/client
-     */
-    // libsql: {
-    //   client: 'libsql',
-    //   connection: {
-    //     url: env.get('LIBSQL_URL'),
-    //     authToken: env.get('LIBSQL_AUTH_TOKEN'),
-    //   },
-    //   useNullAsDefault: true,
-    //   migrations: {
-    //     naturalSort: true,
-    //     paths: ['database/migrations'],
-    //   },
-    //   debug: app.inDev,
-    // },
   },
 })