fix

server/core/storage.py

@@ -149,6 +149,25 @@ def _trim_telemetry(conn: sqlite3.Connection, device_id: str) -> None:
     )
 
 
+def update_device_label(device_id: str, label: str) -> dict[str, Any]:
+    if not is_valid_device_id(device_id):
+        raise ValueError(f"invalid device_id '{device_id}'")
+    clean = (label or "").strip()
+    if not clean:
+        raise ValueError("label required")
+    ts = time.time()
+    with _db() as conn:
+        conn.execute(
+            """
+            INSERT INTO devices (device_id, label, last_seen)
+            VALUES (?, ?, ?)
+            ON CONFLICT(device_id) DO UPDATE SET label = excluded.label
+            """,
+            (device_id, clean, ts),
+        )
+    return {"ok": True, "device_id": device_id, "label": clean}
+
+
 def list_devices() -> list[dict[str, Any]]:
     with _db() as conn:
         rows = conn.execute(