test(T05): contact router, rental router, email service, rate limiting tests + retry queue

backend/app/main.py

@@ -6,11 +6,11 @@ from fastapi.middleware.cors import CORSMiddleware
 from apscheduler.schedulers.asyncio import AsyncIOScheduler
 
 from app.config import get_settings
-from app.database import engine, init_db
+from app.database import engine, init_db, async_session
 from app.cache import cache
 from app.routers import equipment, health, admin, rental_requests, contact
 from app.services.sync_service import SyncService
-from app.database import async_session
+from app.services.email_service import EmailService
 
 logger = logging.getLogger(__name__)
 settings = get_settings()
@@ -27,6 +27,14 @@ async def run_equipment_sync() -> None:
         logger.info("Scheduled sync complete: %s", result)
 
 
+async def run_email_retry() -> None:
+    """Scheduled job: retry failed emails every 15 minutes."""
+    logger.info("Starting scheduled email retry")
+    async with async_session() as db:
+        sent = await EmailService.retry_failed_emails(db)
+        logger.info("Email retry complete: %d emails sent", sent)
+
+
 @asynccontextmanager
 async def lifespan(app: FastAPI):
     """Application lifespan: init DB, start scheduler, connect cache."""
@@ -44,8 +52,15 @@ async def lifespan(app: FastAPI):
         id="equipment_sync",
         replace_existing=True,
     )
+    scheduler.add_job(
+        run_email_retry,
+        trigger="cron",
+        minute="*/15",
+        id="email_retry",
+        replace_existing=True,
+    )
     scheduler.start()
-    logger.info("APScheduler started with equipment_sync job (every 6h)")
+    logger.info("APScheduler started with equipment_sync (every 6h) and email_retry (every 15min)")
 
     yield