- Restore monolithic architecture in gui_2.py to fix test compatibility.
- Implement full-width horizontal expansion for Markdown tables in discussion entries.
- Re-implement layered role-based tints using draw_list channels.
- Standardize Text Viewer docking ID to '###Text_Viewer_Unified'.
- Fix MiniMax compression routing and base URL.
- Fully restore missing theme_2.py definitions.
- 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.
- Modularize discussion entry rendering to src/discussion_entry_renderer.py to fix layout squashing.
- Fix MiniMax compression routing with robust case-insensitive check and synced base URL.
- Implement src/ui_shared.py to resolve circular imports and consolidate shared UI helpers.
- Finalize Structural File Editor integration and state unification.
- Correctly route 'minimax' provider in run_discussion_compression.
- Fix MiniMax base URL to api.minimax.io to match main sender.
- Refactor read-mode discussion entries to always use a scrollable child with auto-resize.
- Remove redundant text wrapping that caused Markdown tables to squash vertically.
- Clean up duplicate separators in discussion hub.
- Update _trim_minimax_history to drop dangling 'tool' messages if their parent 'assistant' message is removed.
- Fixes 'invalid params, tool call result does not follow tool call (2013)' error when token limit is hit.
- Display token metrics (input/output/cache) per response in Discussion Hub.
- Add total Discussion Token usage in the panel header.
- Implement 'Compress' feature to intelligently summarize and replace exhausted discussion histories using an AI subagent.
- Add _repair_minimax_history to close dangling tool calls from interrupted sessions.
- Add _trim_minimax_history to manage token limits and intelligently prune history.
- Integrate repair and trimming into _send_minimax loop.
- Resolves MiniMax error 2013 (tool call result does not follow tool call).
- Add patch_callback parameter throughout the tool execution chain
- Add _render_patch_modal() to gui_2.py with colored diff display
- Add patch modal state variables to App.__init__
- Add request_patch_from_tier4() to trigger patch generation
- Add run_tier4_patch_callback() to ai_client.py
- Update shell_runner to accept and execute patch_callback
- Diff colors: green for additions, red for deletions, cyan for headers
- 36 tests passing
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