fix

server/fastapi_app.py

@@ -31,6 +31,7 @@ storage.init_db()
 
 class TelemetryBody(BaseModel):
     device_id: str
+    device_label: Optional[str] = None
     lat: Optional[float] = None
     lon: Optional[float] = None
     rssi: Optional[float] = None
@@ -53,6 +54,10 @@ class TrackStartBody(BaseModel):
     label: Optional[str] = None
 
 
+class DeviceLabelBody(BaseModel):
+    label: str
+
+
 class TrackPoint(BaseModel):
     ts: Optional[float] = None
     lat: float
@@ -120,6 +125,14 @@ def get_devices():
     return storage.list_devices()
 
 
+@app.patch("/api/devices/{device_id}/label")
+def patch_device_label(device_id: str, body: DeviceLabelBody):
+    try:
+        return storage.update_device_label(device_id, body.label)
+    except ValueError as e:
+        raise HTTPException(400, detail=str(e)) from e
+
+
 @app.get("/api/telemetry")
 def get_telemetry_history(
     device_id: Optional[str] = None,
@@ -366,6 +379,7 @@ def health():
     return {
         "ok": status["db_ok"],
         "ts": time.time(),
+        "api_build": "2026-06-16c",
         **status,
         **elevation_status(),
     }