fix: Robustness improvements for RAG tests and GUI stability

- Added import sys to src/api_hook_client.py.
- Fixed App.__getattr__ to use direct attribute access on controller to avoid recursion.
- Simplified _get_app_attr and _has_app_attr in src/api_hooks.py.
- Centralized RAG and symbol enrichment in AppController._handle_request_event.
- Updated 	ests/test_symbol_parsing.py to match the new enrichment flow.
- Removed redundant task appending from i_status and mma_status setters.
- Improved _sync_rag_engine to only set 'ready' status after indexing is confirmed.
- Updated 	est_status_encapsulation.py to reflect setter changes.

tests/test_symbol_parsing.py

@@ -3,6 +3,7 @@ from unittest.mock import MagicMock, patch
 from pathlib import Path
 from src.app_controller import AppController
 from src.events import UserRequestEvent
+from src import events
 
 @pytest.fixture
 def controller():
@@ -26,60 +27,57 @@ def controller():
   c.event_queue = MagicMock()
   return c
 
-def test_handle_generate_send_appends_definitions(controller):
+def test_handle_request_event_appends_definitions(controller):
  # Setup
  file_items = [{"path": "src/models.py", "entry": "src/models.py"}]
- controller._do_generate = MagicMock(return_value=(
-  "full_md", Path("output.md"), file_items, "stable_md", "disc_text"
- ))
- controller.ui_ai_input = "Explain @Track object"
+ event = UserRequestEvent(
+  prompt="Explain @Track object",
+  stable_md="stable_md",
+  file_items=file_items,
+  disc_text="disc_text",
+  base_dir="."
+ )
  
  # Mock symbol helpers
  with (
   patch('src.app_controller.parse_symbols', return_value=["Track"]) as mock_parse,
    patch('src.app_controller.get_symbol_definition', return_value=("src/models.py", "class Track: pass", 42)) as mock_get_def,
-  patch('threading.Thread') as mock_thread
+  patch('src.ai_client.send') as mock_send
  ):
   # Execute
-  controller._handle_generate_send()
-  
-  # Run worker manually
-  worker = mock_thread.call_args[1]['target']
-  worker()
+  controller._handle_request_event(event)
   
   # Verify
   mock_parse.assert_called_once_with("Explain @Track object")
   mock_get_def.assert_called_once()
   
-  controller.event_queue.put.assert_called_once()
-  event_name, event_payload = controller.event_queue.put.call_args[0]
-  assert event_name == "user_request"
-  assert isinstance(event_payload, UserRequestEvent)
-  
-  # Check if definition was appended
+  # Check if enriched prompt was sent to AI
   expected_suffix = "\n\n[Definition: Track from src/models.py (line 42)]\n```python\nclass Track: pass\n```"
-  assert event_payload.prompt == "Explain @Track object" + expected_suffix
+  mock_send.assert_called_once()
+  args, kwargs = mock_send.call_args
+  sent_prompt = args[1]
+  assert sent_prompt == "Explain @Track object" + expected_suffix
 
-def test_handle_generate_send_no_symbols(controller):
+def test_handle_request_event_no_symbols(controller):
  # Setup
  file_items = [{"path": "src/models.py", "entry": "src/models.py"}]
- controller._do_generate = MagicMock(return_value=(
-  "full_md", Path("output.md"), file_items, "stable_md", "disc_text"
- ))
- controller.ui_ai_input = "Just a normal prompt"
+ event = UserRequestEvent(
+  prompt="Just a normal prompt",
+  stable_md="stable_md",
+  file_items=file_items,
+  disc_text="disc_text",
+  base_dir="."
+ )
  
  with (
   patch('src.app_controller.parse_symbols', return_value=[]) as mock_parse,
-  patch('threading.Thread') as mock_thread
+  patch('src.ai_client.send') as mock_send
  ):
   # Execute
-  controller._handle_generate_send()
-  
-  # Run worker manually
-  worker = mock_thread.call_args[1]['target']
-  worker()
+  controller._handle_request_event(event)
   
   # Verify
-  controller.event_queue.put.assert_called_once()
-  _, event_payload = controller.event_queue.put.call_args[0]
-  assert event_payload.prompt == "Just a normal prompt"
+  mock_send.assert_called_once()
+  args, kwargs = mock_send.call_args
+  sent_prompt = args[1]
+  assert sent_prompt == "Just a normal prompt"