fix: correct circular dep detection in pre-commit hook

The generate-dependency-graph.js script was counting madge's
'Processed N files' info line as a circular chain. Fixed the
filter to only match lines starting with 'N)' pattern.

docs/circular-deps.txt

@@ -1,18 +1,4 @@
 # Circular Dependencies
-Generated: $(date -u +"%Y-%m-%dT%H:%M:%S.%3NZ")
-Found: 0 circular chain(s) — clean!
+Generated: 2026-05-26T19:57:33.588Z
 
-## Status
-All 7 previously-known circular dependency chains have been resolved:
-1. ✅ effects/discipline-effects.ts > stores/discipline-slice.ts > stores/combatStore.ts > stores/combat-actions.ts
-   - Fixed by: discipline-slice.ts uses callbacks instead of directly importing combatStore
-2. ✅ utils/floor-utils.ts > utils/room-utils.ts > utils/enemy-utils.ts
-   - Fixed by: removed re-export of getDodgeChance from floor-utils.ts
-3. ✅ utils/floor-utils.ts > utils/room-utils.ts
-   - Fixed by: same as above
-4. ✅ stores/gameStore.ts > stores/gameActions.ts
-   - Fixed by: extracted GameCoordinatorState to gameStore.types.ts
-5. ✅ stores/gameStore.ts > stores/gameLoopActions.ts
-   - Fixed by: extracted GameCoordinatorState to gameStore.types.ts
-6. ✅ stores/gameStore.ts > stores/tick-pipeline.ts
-   - Fixed by: extracted GameCoordinatorState to gameStore.types.ts
+No circular dependencies found. ✅