fix: add Bun database migration runner

package.json

@@ -7,7 +7,7 @@
     "dev": "bun --hot src/index.ts",
     "build": "bun build src/index.ts --target=bun --outfile=dist/index.js",
     "start": "NODE_ENV=production bun dist/index.js",
-    "db:migrate": "psql $DATABASE_URL -f schema.sql",
+    "db:migrate": "bun src/db/migrate.ts",
     "test": "bun test test/rateLimit.test.ts && bun test test/file.test.ts && bun test test/telegram.test.ts && bun test test/upload.test.ts && bun test test/files.test.ts && bun test test/health.test.ts && bun test test/bot.test.ts && bun test test/bootstrap.test.ts && bun test test/swagger.test.ts",
     "lint": "bunx biome check src test",
     "format": "bunx biome format --write src test"

src/db/migrate.ts

@@ -0,0 +1,16 @@
+import postgres from 'postgres';
+import { config } from '../env';
+import logger from '../utils/logger';
+
+const schemaSql = await Bun.file('schema.sql').text();
+const sql = postgres(config.databaseUrl, { max: 1 });
+
+try {
+  await sql.unsafe(schemaSql);
+  logger.info('Database migration completed');
+} catch (error: any) {
+  logger.error('Database migration failed', { error: error.message });
+  process.exitCode = 1;
+} finally {
+  await sql.end();
+}