feat(Q5): package event queries and tracker state machine

Add insert/get/update queries for package_events table, and
notification content for PACKAGE_DELIVERED and PACKAGE_REMINDER events.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

vigilar/alerts/sender.py

@@ -20,6 +20,8 @@ _CONTENT_MAP: dict[str, tuple[str, str]] = {
     EventType.UNKNOWN_VEHICLE_DETECTED: ("Unknown Vehicle", "Unknown vehicle on {source}"),
     EventType.POWER_LOSS: ("Power Alert", "UPS on battery"),
     EventType.LOW_BATTERY: ("Battery Critical", "UPS battery low"),
+    EventType.PACKAGE_DELIVERED: ("Package Delivered", "Package delivered — {source}"),
+    EventType.PACKAGE_REMINDER: ("Package Reminder", "Package still on porch — {source}"),
 }
 
 

vigilar/storage/queries.py

@@ -516,3 +516,33 @@ def get_training_images(
             .order_by(desc(pet_training_images.c.created_at))
         ).fetchall()
         return [dict(r._mapping) for r in rows]
+
+
+# --- Package Events ---
+
+def insert_package_event(
+    engine: Engine, camera_id: str, detected_at: float, status: str,
+    crop_path: str | None = None, event_id: int | None = None,
+) -> int:
+    from vigilar.storage.schema import package_events
+    with engine.begin() as conn:
+        result = conn.execute(package_events.insert().values(
+            camera_id=camera_id, detected_at=detected_at, status=status,
+            crop_path=crop_path, event_id=event_id))
+        return result.inserted_primary_key[0]
+
+
+def get_active_packages(engine: Engine) -> list[dict[str, Any]]:
+    from vigilar.storage.schema import package_events
+    with engine.connect() as conn:
+        rows = conn.execute(
+            select(package_events).where(package_events.c.status.in_(["PRESENT", "REMINDED"]))
+            .order_by(desc(package_events.c.detected_at))).mappings().all()
+        return [dict(r) for r in rows]
+
+
+def update_package_status(engine: Engine, package_id: int, status: str, **kwargs: Any) -> None:
+    from vigilar.storage.schema import package_events
+    with engine.begin() as conn:
+        conn.execute(package_events.update().where(package_events.c.id == package_id)
+            .values(status=status, **kwargs))