feat: implement update-service v1 migration and enrollment flow

- added /update/enroll endpoint and enrollment logic
- migrated update client to v1 api endpoints and bearer auth
- implemented remote status reporting in backend and scripts
- updated requirements and project status

backend/app.py

@@ -19,6 +19,8 @@ from backend.auth import (
 from backend.models import (
     ActionRequest,
     ActionResponse,
+    EnrollRequest,
+    EnrollResponse,
     LoginRequest,
     LoginResponse,
     UpdateActionResponse,
@@ -239,6 +241,24 @@ def update_status(settings: Settings = Depends(get_settings)) -> UpdateStatus:
     return UpdateStatus(**status_data)
 
 
+@app.post("/update/enroll", response_model=EnrollResponse, dependencies=[Depends(get_current_admin)])
+def update_enroll(
+    payload: EnrollRequest | None = Body(default=None),
+    settings: Settings = Depends(get_settings),
+) -> EnrollResponse:
+    if payload and payload.enroll_token:
+        settings.update_enroll_token = payload.enroll_token
+    try:
+        update.enroll(settings)
+        return EnrollResponse(enrolled=True, message="Enrollment successful")
+    except Exception as exc:
+        logger.exception("Enrollment failed")
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail=f"Enrollment failed: {str(exc)}",
+        ) from exc
+
+
 @app.post("/update/check", response_model=UpdateCheckResponse, dependencies=[Depends(get_current_admin)])
 def update_check(settings: Settings = Depends(get_settings)) -> UpdateCheckResponse:
     try: