docs: update AGENTS.md to reference project-structure.txt and clarify legacy store status

AGENTS.md

@@ -233,7 +233,15 @@ src/
     └── utils.ts                      # General utilities (cn function)
 ```
 
-*Note: A complete, up-to-date project tree is automatically generated on each commit and saved to `docs/project-structure.txt`. This file is generated by the pre-commit hook using `.husky/scripts/generate-project-tree.js` and respects `.gitignore` rules.*
+*For a complete, up-to-date project tree, see `docs/project-structure.txt` (auto-generated on each commit).*
+
+### Quick Reference
+- **Modular Stores**: `src/lib/game/stores/` (USE THESE)
+- **Legacy Store**: `src/lib/game/store.ts` and `src/lib/game/store-modules/` (DEPRECATED - being migrated)
+- **Utilities**: `src/lib/game/utils/` (new home for migrated utilities)
+- **Project Structure**: `docs/project-structure.txt` (full tree, auto-generated)
+
+*Note: The project tree in `docs/project-structure.txt` is automatically generated on each commit by the pre-commit hook using `.husky/scripts/generate-project-tree.js` and respects `.gitignore` rules.*
 
 ## Key Systems
 

docs/project-structure.txt

@@ -12,11 +12,6 @@ Mana-Loop/
 │   └── custom.db
 ├── docs/
 │   ├── GAME_BRIEFING.md
-│   ├── SPEC-mana-conversion-fix.md
-│   ├── context-grimoire-tab-fix.md
-│   ├── context-legacy-store-cleanup.md
-│   ├── context-mana-conversion-fix.md
-│   ├── context-spire-tab-fix.md
 │   ├── project-structure.txt
 │   └── skills.md
 ├── download/