Add AI DEV Node deployment foundation

scripts/check-db.mjs

@@ -0,0 +1,30 @@
+import { existsSync } from 'node:fs';
+import path from 'node:path';
+import dotenv from 'dotenv';
+import pg from 'pg';
+
+const projectEnvPath = path.resolve(process.cwd(), '.project-env');
+const dotEnvPath = path.resolve(process.cwd(), '.env');
+
+if (existsSync(projectEnvPath)) {
+  dotenv.config({ path: projectEnvPath });
+} else if (existsSync(dotEnvPath)) {
+  dotenv.config({ path: dotEnvPath });
+}
+
+if (!process.env.DATABASE_URL) {
+  console.error('DB FAIL: DATABASE_URL is not set. Run inside the AI DEV project folder with .project-env loaded.');
+  process.exit(1);
+}
+
+const pool = new pg.Pool({ connectionString: process.env.DATABASE_URL });
+
+try {
+  const result = await pool.query('SELECT now() AS now');
+  console.log(`DB OK: ${result.rows[0]?.now}`);
+} catch (error) {
+  console.error(`DB FAIL: ${error instanceof Error ? error.message : String(error)}`);
+  process.exitCode = 1;
+} finally {
+  await pool.end();
+}