- Runs SELECT 1 via Drizzle db client
- Returns { ok: true, db: 'connected' } with status 200 on success
- Returns { ok: false, error: message } with status 503 on DB failure
- No auth check — intentionally public for Docker HEALTHCHECK
- Runs SELECT 1 via Drizzle db client
- Returns { ok: true, db: 'connected' } with status 200 on success
- Returns { ok: false, error: message } with status 503 on DB failure
- No auth check — intentionally public for Docker HEALTHCHECK