wip -more responsive UI, better routing

tests/test_tracker_routing.py

@@ -1498,6 +1498,70 @@ def test_tracker_heartbeat_updates_node():
         tracker.stop()
 
 
+def test_tracker_heartbeat_stores_current_requests():
+    """Node-reported in-flight request snapshots appear on the network map."""
+    tracker = TrackerServer()
+    tracker_port = tracker.start()
+    try:
+        reg = _post_json(
+            f"http://127.0.0.1:{tracker_port}/v1/nodes/register",
+            {
+                "endpoint": "http://127.0.0.1:9001",
+                "model": "progress-model",
+                "shard_start": 0,
+                "shard_end": 31,
+                "hardware_profile": {},
+                "score": 1.0,
+            },
+        )
+        node_id = reg["node_id"]
+        _post_json(
+            f"http://127.0.0.1:{tracker_port}/v1/nodes/{node_id}/heartbeat",
+            {
+                "queue_depth": 1,
+                "current_requests": [{
+                    "request_id": "req-abc123",
+                    "model": "progress-model",
+                    "kind": "chat",
+                    "tokens": 17,
+                    "elapsed_seconds": 42.5,
+                    "tokens_per_sec": 0.4,
+                    "routing_complete": True,
+                }],
+            },
+        )
+        network = _get_json(f"http://127.0.0.1:{tracker_port}/v1/network/map")
+        node = next(item for item in network["nodes"] if item["node_id"] == node_id)
+        assert node["stats"]["queue_depth"] == 1
+        assert node["stats"]["current_requests"] == [{
+            "request_id": "req-abc123",
+            "model": "progress-model",
+            "kind": "chat",
+            "tokens": 17,
+            "elapsed_seconds": 42.5,
+            "tokens_per_sec": 0.4,
+            "routing_complete": True,
+        }]
+    finally:
+        tracker.stop()
+
+
+def test_normalize_current_requests_sanitizes_payload():
+    from meshnet_tracker.server import _normalize_current_requests
+
+    assert _normalize_current_requests(None) == []
+    assert _normalize_current_requests([
+        {"request_id": "req-1", "model": "m", "tokens": "9", "tokens_per_sec": "1.5"},
+        {"model": "missing-id"},
+        "bad",
+    ]) == [{
+        "request_id": "req-1",
+        "model": "m",
+        "tokens": 9,
+        "tokens_per_sec": 1.5,
+    }]
+
+
 def test_tracker_heartbeat_expiry():
     """Nodes that miss their heartbeat window are excluded from routes."""
     tracker = TrackerServer(heartbeat_timeout=0.05)  # 50 ms