snapshot: WIP 5j replay reliability (B1 watchdog + dialog handlers + grounding drift)

Snapshot avant correction du blocage relance Léa (3 incidents 24h: SSH refusé,
polls morts ×2). Point de rollback stable.

Contenu:
- agent_v1/core/executor.py: 5 patchs dialog handling (saveas drift, close_tab
  hotkey fallback, confirm_save Unicode apostrophe, foreground dialog
  recontextualization, runtime_dialog in-loop) + helpers normalize_window_hint,
  requires_post_verify_window_transition
- agent_v1/core/grounding.py: garde drift template fix (fallback_x/y plumbed)
- server_v1/replay_watchdog.py (NEW): orphan watchdog B1, scan 10s timeout 30s
- server_v1/api_stream.py: dispatched_action plumbing, watchdog lifespan,
  metrics endpoint
- server_v1/replay_engine.py: _schedule_retry préserve original_action +
  dispatched_action
- stream_processor.py: gardes _infer_tab_switch_target (no false switch_tab
  on save_as dialog open) + _attach_expected_window_before
- tests/integration: test_replay_watchdog.py (8 cas), test_stream_processor.py
- tests/unit: test_executor_verify_window_guard.py (start_button, close_tab,
  runtime_dialog, post_verify, transition fallbacks)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

tests/unit/test_agent_finalize_replay_contract.py

@@ -0,0 +1,184 @@
+"""Tests ciblés sur l'intégration agent du contrat finalize enrichi."""
+
+from __future__ import annotations
+
+import sys
+import types
+from pathlib import Path
+from unittest.mock import MagicMock, patch
+
+
+_ROOT = str(Path(__file__).resolve().parents[2])
+if _ROOT not in sys.path:
+    sys.path.insert(0, _ROOT)
+
+
+class _ImmediateThread:
+    def __init__(self, target=None, args=(), kwargs=None, daemon=None):
+        self._target = target
+        self._args = args
+        self._kwargs = kwargs or {}
+
+    def start(self):
+        if self._target is not None:
+            self._target(*self._args, **self._kwargs)
+
+
+class _DummyServerClient:
+    _stream_base = "http://server.test:5005"
+
+    def __init__(self):
+        self.on_connection_change = None
+
+    def set_on_connection_change(self, callback):
+        self.on_connection_change = callback
+
+    def _auth_headers(self):
+        return {"Authorization": "Bearer test-token"}
+
+
+def _install_pystray_stub():
+    pystray_stub = types.ModuleType("pystray")
+
+    class _DummyMenu:
+        SEPARATOR = object()
+
+        def __init__(self, *args, **kwargs):
+            self.args = args
+            self.kwargs = kwargs
+
+    class _DummyIcon:
+        def __init__(self, *args, **kwargs):
+            self.args = args
+            self.kwargs = kwargs
+
+        def run(self):
+            return None
+
+        def stop(self):
+            return None
+
+        def update_menu(self):
+            return None
+
+    pystray_stub.MenuItem = lambda *args, **kwargs: (args, kwargs)
+    pystray_stub.Menu = _DummyMenu
+    pystray_stub.Icon = _DummyIcon
+    sys.modules["pystray"] = pystray_stub
+
+
+def _build_tray():
+    _install_pystray_stub()
+
+    from agent_v0.agent_v1.ui.smart_tray import SmartTrayV1
+
+    tray = SmartTrayV1(
+        on_start_callback=lambda _name: None,
+        on_stop_callback=lambda: None,
+        server_client=_DummyServerClient(),
+    )
+    tray._notifier = MagicMock()
+    return tray
+
+
+def test_offer_finalize_replay_requires_user_consent():
+    _install_pystray_stub()
+    from agent_v0.agent_v1.ui import smart_tray as smart_tray_mod
+
+    tray = _build_tray()
+    tray._launch_replay_request = MagicMock()
+
+    with patch.object(smart_tray_mod.threading, "Thread", _ImmediateThread), \
+         patch.object(smart_tray_mod, "_ask_consent", return_value=False):
+        tray.offer_finalize_replay(
+            {
+                "endpoint": "/api/v1/traces/stream/replay-session",
+                "session_id": "sess_offer_001",
+                "machine_id": "pc-offer",
+            },
+            "Bloc-notes",
+        )
+
+    tray._notifier.notify.assert_called_once()
+    tray._launch_replay_request.assert_not_called()
+
+
+def test_launch_replay_request_calls_replay_session_endpoint():
+    _install_pystray_stub()
+    from agent_v0.agent_v1.ui import smart_tray as smart_tray_mod
+
+    tray = _build_tray()
+
+    with patch.object(smart_tray_mod.threading, "Thread", _ImmediateThread), \
+         patch("requests.post") as mock_post:
+        mock_post.return_value = MagicMock(ok=True)
+        tray._launch_replay_request(
+            {
+                "endpoint": "/api/v1/traces/stream/replay-session",
+                "session_id": "sess_offer_002",
+                "machine_id": "pc-replay",
+            },
+            "Bloc-notes",
+        )
+
+    mock_post.assert_called_once()
+    _, kwargs = mock_post.call_args
+    assert kwargs["params"] == {
+        "session_id": "sess_offer_002",
+        "machine_id": "pc-replay",
+    }
+    assert kwargs["headers"] == {"Authorization": "Bearer test-token"}
+    assert kwargs["allow_redirects"] is False
+
+
+def test_agent_finalize_result_delegates_to_tray_offer():
+    from agent_v0.agent_v1.finalize_contract import dispatch_finalize_result
+
+    ui = MagicMock()
+
+    dispatch_finalize_result(
+        ui,
+        {
+            "replay_ready": True,
+            "replay_request": {
+                "endpoint": "/api/v1/traces/stream/replay-session",
+                "session_id": "sess_offer_003",
+                "machine_id": "pc-main",
+            },
+        },
+        "Saisie dossier",
+    )
+
+    ui.offer_finalize_replay.assert_called_once_with(
+        {
+            "endpoint": "/api/v1/traces/stream/replay-session",
+            "session_id": "sess_offer_003",
+            "machine_id": "pc-main",
+        },
+        "Saisie dossier",
+    )
+
+
+def test_agent_finalize_result_ignores_already_started_replay():
+    from agent_v0.agent_v1.finalize_contract import dispatch_finalize_result
+
+    ui = MagicMock()
+
+    dispatch_finalize_result(
+        ui,
+        {
+            "replay_ready": True,
+            "replay_request": {
+                "endpoint": "/api/v1/traces/stream/replay-session",
+                "session_id": "sess_offer_004",
+                "machine_id": "pc-main",
+            },
+            "replay_launch": {
+                "status": "started",
+                "replay": {"replay_id": "replay_sess_1234"},
+            },
+        },
+        "Saisie dossier",
+    )
+
+    ui.offer_finalize_replay.assert_not_called()