tlc: update PLAN.md with W6-series changelog entries

local/recipes/tui/tlc/PLAN.md

@@ -11,6 +11,7 @@
 - Visual polish (V1–V6): focused border, sparkline, size coloring, sub-cell bars, skin cache, disk-free
 - Warning cleanup: all 42 compiler warnings eliminated (zero-warning policy)
 - Stub fixes (W1–W5): dead dialogs, Suspend, Connection/Encoding wiring, EditUserMenu, batch SkipAll
+- Visual/UX gap fixes (W6a–W6d): CJK width, bracket flash, search wrap, tab indicator
 
 **Branch:** `0.2.5`
 **Tests:** 1381 passing (+162 across all sprints + polish)
@@ -732,6 +733,7 @@ $HOME/.config/tlc/known_hosts      ← SFTP server key fingerprints (Phase 27)
 | 4 | D-series (D1–D8) | 8/8 | ✅ Done | 2026-07-05 |
 | V | Visual polish (V1–V6) | 6/6 | ✅ Done | 2026-07-06 |
 | W | Warning cleanup + stub fixes (W1–W5) | 5/5 | ✅ Done | 2026-07-06 |
+| W6 | Visual/UX gap fixes (W6a–W6d) | 4/4 | ✅ Done | 2026-07-06 |
 
 ### 9.1 Sprint 4 Completion Summary
 
@@ -765,6 +767,14 @@ All 5 W-series items complete:
 
 Also: All 42 compiler warnings eliminated (unused imports/vars, missing docs on public API items).
 
+### 9.4 Visual/UX Gap Fixes (W6-series, 2026-07-06)
+
+All 4 W6-series items complete:
+- **W6a**: Fix CJK/wide character width — `visual_width()` now uses `UnicodeWidthChar::width()` instead of hardcoding 1; `count_wrapped_rows()` iterates UTF-8 chars instead of raw bytes
+- **W6b**: Render bracket match flash highlight — `bracket_flash` was computed but never rendered; now applies accent background style to matching brackets via `push_rendered_text` bracket_offsets parameter
+- **W6c**: Add search wrap-around notification — `last_wrapped` flag in both editor `SearchState` and viewer `Search`; "Search wrapped" message on wrap in both editor and viewer
+- **W6d**: Editor status bar tab width indicator — `Tab:{width}` in `status_string()`; hardcoded widget defaults verified as dead code (all rendering goes through `render_popup` which uses theme colors)
+
 ## 10. REFERENCES
 
 - MC 4.8.33 C source: `local/recipes/tui/mc/source/` (read-only cross-reference)