feat: fastapi app mit lifespan, webhook handler und /health

app/webhook/handler.py

@@ -0,0 +1,20 @@
+from fastapi import APIRouter, BackgroundTasks, Header, status
+
+from app.config import get_settings
+from app.ingest.pipeline import process_file
+from app.webhook.auth import verify_secret
+from app.webhook.models import NextcloudEvent
+
+
+router = APIRouter()
+
+
+@router.post("/webhook", status_code=status.HTTP_202_ACCEPTED)
+async def webhook(
+    event: NextcloudEvent,
+    background: BackgroundTasks,
+    x_webhook_secret: str | None = Header(default=None),
+):
+    verify_secret(x_webhook_secret, get_settings().webhook_secret)
+    background.add_task(process_file, event.file_path, event.event_type)
+    return {"status": "accepted"}