feat(gui): Implement frosted glass UI controls and config persistence

tests/test_gui_frosted_integration.py

@@ -0,0 +1,28 @@
+import pytest
+from unittest.mock import patch, MagicMock
+
+def test_gui_frosted_background_call():
+ # Mock ShaderManager and OpenGL functions
+ with patch("src.gui_2.ShaderManager") as mock_sm_class, \
+      patch("src.gui_2.gl") as mock_gl, \
+      patch("src.gui_2.imgui") as mock_imgui:
+  
+  mock_sm = mock_sm_class.return_value
+  mock_sm.fbo_width = 0
+  mock_sm.fbo_height = 0
+  mock_sm.capture_tex = 1
+  mock_sm.blur_tex = 2
+  
+  mock_imgui.get_io().display_size = MagicMock(x=1920, y=1080)
+  
+  from src.gui_2 import App
+  app = App()
+  
+  # Simulate frame
+  app._render_frosted_background(pos=MagicMock(x=10, y=10), size=MagicMock(x=100, y=100))
+  
+  assert mock_sm.setup_capture_fbo.called
+  assert mock_gl.glCopyTexImage2D.called
+  assert mock_sm.render_blur.called
+  assert mock_sm.capture_begin.called
+  assert mock_sm.capture_end.called