feat: migrate from PocketBase to PostgreSQL with Drizzle ORM

- Add @project-e/db package with Drizzle schema and migrations
- Replace PocketBase client with PostgreSQL-based database client
- Migrate auth from custom to NextAuth.js
- Add Docker Compose with PostgreSQL container
- Update worker to use new database client
- Remove PocketBase-specific files and migrations
- Add drizzle config and initial migration

packages/db/package.json

@@ -0,0 +1,14 @@
+{
+  "name": "@project-e/db",
+  "version": "0.1.0",
+  "private": true,
+  "type": "module",
+  "exports": {
+    ".": "./src/index.ts",
+    "./schema": "./src/schema.ts"
+  },
+  "dependencies": {
+    "drizzle-orm": "^0.45.1",
+    "postgres": "^3.4.8"
+  }
+}

packages/db/src/index.ts

@@ -0,0 +1,13 @@
+import { drizzle } from 'drizzle-orm/postgres-js';
+import postgres from 'postgres';
+import * as schema from './schema';
+
+const databaseUrl = process.env.DATABASE_URL;
+
+if (!databaseUrl) {
+  throw new Error('DATABASE_URL is required.');
+}
+
+export const sql = postgres(databaseUrl, { max: 10 });
+export const db = drizzle(sql, { schema });
+export * from './schema';

packages/db/src/schema.ts

@@ -0,0 +1,24 @@
+import { index, jsonb, pgTable, text, timestamp, uuid } from 'drizzle-orm/pg-core';
+
+export const users = pgTable('users', {
+  id: uuid('id').defaultRandom().primaryKey(),
+  email: text('email').notNull().unique(),
+  name: text('name').notNull(),
+  passwordHash: text('password_hash').notNull(),
+  createdAt: timestamp('created_at', { withTimezone: true }).defaultNow().notNull(),
+  updatedAt: timestamp('updated_at', { withTimezone: true }).defaultNow().notNull(),
+});
+
+// Collection data is intentionally stored as JSONB. The application has flexible
+// per-collection fields, and this preserves that shape while PostgreSQL owns storage.
+export const records = pgTable(
+  'records',
+  {
+    id: uuid('id').defaultRandom().primaryKey(),
+    collection: text('collection').notNull(),
+    data: jsonb('data').$type<Record<string, unknown>>().notNull().default({}),
+    createdAt: timestamp('created_at', { withTimezone: true }).defaultNow().notNull(),
+    updatedAt: timestamp('updated_at', { withTimezone: true }).defaultNow().notNull(),
+  },
+  (table) => [index('records_collection_created_at_idx').on(table.collection, table.createdAt)]
+);