fix

server/core/storage.py

@@ -15,6 +15,8 @@ WEB_SENDER_ID = "web"
 COMMAND_KINDS = frozenset({"at", "mode", "stats_push"})
 PAIRED_ONLINE_SEC = 30.0
 PAIRED_START_DELAY_SEC = 3.0
+# Hide devices on map/UI after this many seconds without telemetry.
+DEVICE_VISIBLE_SEC = 180.0
 
 logger = logging.getLogger(__name__)
 
@@ -163,8 +165,13 @@ def list_devices() -> list[dict[str, Any]]:
             ORDER BY d.last_seen DESC
             """
         ).fetchall()
+    cutoff = time.time() - DEVICE_VISIBLE_SEC
     devices = [_row_to_device(r) for r in rows]
-    return [d for d in devices if not _is_null_island(d)]
+    return [
+        d
+        for d in devices
+        if not _is_null_island(d) and d.get("last_seen", 0) >= cutoff
+    ]
 
 
 def _is_null_island(device: dict[str, Any]) -> bool:
@@ -335,13 +342,18 @@ def list_tracks(device_id: Optional[str] = None, limit: int = 50) -> list[dict[s
              WHERE p.track_id = t.id AND p.role IS NOT NULL AND p.role != ''
              ORDER BY p.ts DESC LIMIT 1)
         """
-        if device_id:
-            rows = conn.execute(
-                f"""
+        track_cols = f"""
                 SELECT t.id, t.device_id, t.started_at, t.ended_at, t.label,
+                       d.label AS device_label,
                        (SELECT COUNT(*) FROM track_points p WHERE p.track_id = t.id) AS point_count,
                        {role_sub} AS role
                 FROM tracks t
+                LEFT JOIN devices d ON d.device_id = t.device_id
+        """
+        if device_id:
+            rows = conn.execute(
+                f"""
+                {track_cols}
                 WHERE t.device_id = ?
                 ORDER BY t.started_at DESC
                 LIMIT ?
@@ -351,10 +363,7 @@ def list_tracks(device_id: Optional[str] = None, limit: int = 50) -> list[dict[s
         else:
             rows = conn.execute(
                 f"""
-                SELECT t.id, t.device_id, t.started_at, t.ended_at, t.label,
-                       (SELECT COUNT(*) FROM track_points p WHERE p.track_id = t.id) AS point_count,
-                       {role_sub} AS role
-                FROM tracks t
+                {track_cols}
                 ORDER BY t.started_at DESC
                 LIMIT ?
                 """,
@@ -367,7 +376,11 @@ def get_track(track_id: int) -> dict[str, Any]:
     with _db() as conn:
         track = conn.execute(
             """
-            SELECT id, device_id, started_at, ended_at, label FROM tracks WHERE id = ?
+            SELECT t.id, t.device_id, t.started_at, t.ended_at, t.label,
+                   d.label AS device_label
+            FROM tracks t
+            LEFT JOIN devices d ON d.device_id = t.device_id
+            WHERE t.id = ?
             """,
             (track_id,),
         ).fetchone()
@@ -408,9 +421,11 @@ def get_chat(since: float = 0.0, limit: int = 200) -> list[dict[str, Any]]:
     with _db() as conn:
         rows = conn.execute(
             """
-            SELECT id, device_id, text, ts FROM chat
-            WHERE ts > ?
-            ORDER BY ts ASC LIMIT ?
+            SELECT c.id, c.device_id, c.text, c.ts, d.label AS device_label
+            FROM chat c
+            LEFT JOIN devices d ON d.device_id = c.device_id
+            WHERE c.ts > ?
+            ORDER BY c.ts ASC LIMIT ?
             """,
             (since, limit),
         ).fetchall()