docs: update todo.md with Quick Settings tile feature

— claude-opus-4-5-20251101

Author: tribixbite

memory/todo.md

@@ -18,6 +18,7 @@
 - #62 ✅ Password manager clipboard exclusion - IMPLEMENTED (2026-01-15)
 - #1134 ✅ Test keyboard field in settings - IMPLEMENTED (2026-01-15)
 - #940 ✅ Clipboard delete individual items - IMPLEMENTED (2026-01-15)
+- #1113 ✅ Quick Settings tile for keyboard - IMPLEMENTED (2026-01-15)
 
 **Open Feature Requests** (for future consideration):
 - #61 Active multi-language switching
@@ -75,6 +76,20 @@
 
 ---
 
+## Quick Settings Tile - IMPLEMENTED (2026-01-15)
+
+**Feature**: Add Quick Settings tile for keyboard switching (#1113).
+
+**Implementation**:
+- **KeyboardTileService.kt**: TileService implementation (Android 7.0+)
+  - Shows active/inactive state based on current input method
+  - Tapping opens system input method picker
+- **AndroidManifest.xml**: Register service with BIND_QUICK_SETTINGS_TILE permission
+
+**Commit**: `7db976d1 feat: add Quick Settings tile for keyboard switching`
+
+---
+
 ## User Guide Wiki System - COMPLETE & VERIFIED (2026-01-15)
 
 **Goal**: Create comprehensive user guide wiki with paired technical specs.