8f6f47d46b
- Restore monolithic architecture in gui_2.py to fix test breakages and circular imports. - Update Text Viewer stable ID to '###Text_Viewer_Unified' to definitively fix docking conflicts. - Refactor discussion entry renderer to force full-width horizontal expansion for Markdown. - Fully restore theme_2.py definitions (palettes, fonts, scale) while retaining role-tint logic. - Robustify ImGui ID stack in imgui_scopes.py to prevent access violations. - Verify all fixes with the comprehensive unit and visual test suite.