migration Part 1.

app/seismo/services/snapshot.py

@@ -1,8 +1,8 @@
 from datetime import datetime, timezone
 from sqlalchemy.orm import Session
 
-from backend.database import get_db_session
-from backend.models import Emitter, RosterUnit, IgnoredUnit
+from app.seismo.database import get_db_session
+from app.seismo.models import Emitter, RosterUnit, IgnoredUnit
 
 
 def ensure_utc(dt):
@@ -60,7 +60,7 @@ def emit_status_snapshot():
     db = get_db_session()
     try:
         # Get user preferences for status thresholds
-        from backend.models import UserPreferences
+        from app.seismo.models import UserPreferences
         prefs = db.query(UserPreferences).filter_by(id=1).first()
         status_ok_threshold = prefs.status_ok_threshold_hours if prefs else 12
         status_pending_threshold = prefs.status_pending_threshold_hours if prefs else 24