chore: close feature_bleed_cleanup_20260302 — update TASKS.md and JOURNAL.md

All 3 phases complete and verified. 62 lines of dead code removed from gui_2.py.
Meta-Level Sanity Check: 0 new ruff violations introduced.
Next track: mma_agent_focus_ux_20260302 (dependency on Phase 1 now satisfied)

JOURNAL.md

@@ -47,6 +47,20 @@
 - **Heuristics & Backlog**: Added Data-Oriented Design and Immediate Mode architectural heuristics (inspired by Muratori/Acton) to product-guidelines.md. Logged future decoupling and robust parsing tracks to a 'Future Backlog' in TASKS.md.
 ---
 
+## 2026-03-02 (Session 3)
+
+### Track: feature_bleed_cleanup_20260302 — Completed |TASK:feature_bleed_cleanup_20260302|
+- **What**: Removed all confirmed dead code and layout regressions from gui_2.py (3 phases)
+- **Why**: Tier 3 workers had left behind dead duplicate methods, dead menu block, duplicate state vars, and a broken Token Budget layout that embedded the panel inside Provider & Model with double labels
+- **How**:
+  - Phase 1: Deleted dead `_render_comms_history_panel` duplicate (stale `type` key, nonexistent `_cb_load_prior_log`, `scroll_area` ID collision). Deleted 4 duplicate `__init__` assignments (ui_new_track_name etc.)
+  - Phase 2: Deleted dead `begin_main_menu_bar()` block (24 lines, always-False in HelloImGui). Added working `Quit` to `_show_menus` via `runner_params.app_shall_exit = True`
+  - Phase 3: Removed 4 redundant Token Budget labels/call from `_render_provider_panel`. Added `collapsing_header("Token Budget")` to AI Settings with proper `_render_token_budget_panel()` call
+- **Issues**: Full test suite hangs (pre-existing — `test_suite_performance_and_flakiness` backlog). Ran targeted GUI/MMA subset (32 passed) as regression proxy. Meta-Level Sanity Check: 52 ruff errors in gui_2.py before and after — zero new violations introduced
+- **Result**: All 3 phases verified by user. Checkpoints: be7174c (Phase 1), 15fd786 (Phase 2), 0d081a2 (Phase 3)
+
+---
+