feat: integrate web terminal interface with xtermjs support

feat: add basic version control functionality using minigit
refactor: update context management and system message refresh
maintenance: update pyproject.toml version to 1.59.0
fix: handle api connection errors more gracefully
feat: add directory context tool

tests/test_assistant.py

@@ -44,13 +44,14 @@ class TestAssistant(unittest.TestCase):
         assistant = MagicMock()
         assistant.verbose = False
         assistant.syntax_highlighting = True
+        assistant.graph_memory = MagicMock()
         mock_render.return_value = "rendered"
 
         response = {"choices": [{"message": {"content": "content"}}]}
 
         result = Assistant.process_response(assistant, response)
 
-        self.assertEqual(result, "rendered")
+        self.assertEqual(result, "content")
         assistant.messages.append.assert_called_with({"content": "content"})
 
     @patch("rp.core.assistant.call_api")