feat: SDK integration and various improvements

- Refactor core modules for better SDK integration
- Improve skill manager with better caching and loading
- Update dashboard routes for plugin and tools management
- Fix and enhance computer skill synchronization
- Various bug fixes and test improvements

tests/unit/test_internal_agent_sub_stage.py

@@ -111,7 +111,7 @@ async def test_internal_stage_uses_effective_runner_streaming_flag():
         ),
     ):
         yielded = []
-        async for item in stage.process(event, provider_wake_prefix=""):
+        async for item in stage.process(event):
             yielded.append(item)
 
     assert yielded == [None]