feat(rover): add drive profiles and leased remote command channel

tests/fleet/test_board_layout.py

@@ -0,0 +1,42 @@
+import json
+import threading
+from types import SimpleNamespace
+
+from fastapi import FastAPI
+from fastapi.testclient import TestClient
+import pytest
+
+from k1link.fleet import board_layout
+from k1link.fleet.trust import PairingError
+from k1link.web.fleet_api import router, local_operator
+
+
+def test_layout_api_persists_empty_and_isolates_vehicles(tmp_path):
+    app = FastAPI()
+    app.include_router(router)
+    def find(identifier):
+        if identifier not in ("rover-a", "rover-b"):
+            raise PairingError("Unknown")
+    fleet = SimpleNamespace(root=tmp_path, lock=threading.RLock(), find=find)
+    app.dependency_overrides[local_operator] = lambda: fleet
+    client = TestClient(app)
+    for section in board_layout.SECTIONS:
+        response = client.patch('/api/v1/fleet/rover-a/board-layout', json={"section": section, "open": False})
+        assert response.status_code == 200
+    assert client.get('/api/v1/fleet/rover-a/board-layout').json()['open_sections'] == []
+    assert client.get('/api/v1/fleet/rover-b/board-layout').json()['open_sections'] == list(board_layout.SECTIONS)
+    assert board_layout.read(tmp_path, 'rover-a')['revision'] == 3
+    assert board_layout.path(tmp_path, 'rover-a').stat().st_mode & 0o777 == 0o600
+    for body in ({"section":"motor","open":True},{"section":"computer","open":"true"},{"section":"computer","open":True,"extra":0}):
+        assert client.patch('/api/v1/fleet/rover-a/board-layout', json=body).status_code == 422
+    assert client.get('/api/v1/fleet/missing/board-layout').status_code == 404
+
+
+def test_corrupt_layout_is_preserved(tmp_path):
+    board_layout.update(tmp_path, "a", "computer", False)
+    target = board_layout.path(tmp_path, "a")
+    raw = json.dumps({"schema":board_layout.SCHEMA,"revision":3,"open_sections":["motor"]})
+    target.write_text(raw)
+    with pytest.raises(ValueError):
+        board_layout.update(tmp_path, "a", "devices", False)
+    assert target.read_text() == raw