feat(ai-server): Add AIProxyClient queue communication layer

tests/conftest.py

@@ -11,10 +11,17 @@ from pathlib import Path
 from typing import Generator, Any
 from unittest.mock import patch
 
-# Ensure project root is in path for imports
-sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), "..")))
+thirdparty_dir = os.path.join(os.path.dirname(__file__), "..", "thirdparty")
+if thirdparty_dir not in sys.path:
+    sys.path.insert(0, thirdparty_dir)
+
+project_root = os.path.abspath(os.path.join(os.path.dirname(__file__), ".."))
+if project_root not in sys.path:
+    sys.path.insert(0, project_root)
+
+from defer.sugar import install
+install()
 
-# Import the App class after patching if necessary, but here we just need the type hint
 from src.gui_2 import App
 
 class VerificationLogger:

tests/test_ai_client_proxy.py

@@ -0,0 +1,42 @@
+import pytest
+import threading
+from unittest.mock import MagicMock, patch
+from src.ai_client_proxy import AIProxyClient
+
+
+def test_proxy_initialization():
+    proxy = AIProxyClient()
+    assert proxy._status == "disconnected"
+    assert proxy._pending == {}
+
+
+def test_proxy_status_property():
+    proxy = AIProxyClient()
+    assert proxy.status in ("disconnected", "init", "ready", "busy", "error")
+
+
+def test_proxy_status_reflects_internal_state():
+    proxy = AIProxyClient()
+    assert proxy.status == "disconnected"
+    proxy._status = "ready"
+    assert proxy.status == "ready"
+
+
+def test_send_command_without_server_returns_error():
+    proxy = AIProxyClient()
+    proxy._status = "ready"
+    result = proxy.send_command("list_models", {"provider": "gemini"})
+    assert "error" in result
+
+
+def test_pending_dict_structure():
+    proxy = AIProxyClient()
+    assert isinstance(proxy._pending, dict)
+    assert len(proxy._pending) == 0
+
+
+def test_stop_when_not_started():
+    proxy = AIProxyClient()
+    proxy.stop()
+    assert proxy._status == "disconnected"
+    assert proxy._process is None