fix: resolve 5 bugs — missing import, infinite render loop, stale closures, discipline XP

- #249: Add missing getAllGuardianFloors import to SpireSummaryTab.tsx
- #250/#252: Add useRef guard in SpireCombatPage useEffect to prevent infinite re-render loop
- #251: Fix stale closure in PactDebugSection signAllPacts/forcePact — read signedPacts from store.getState()
- #253: Fix DisciplineDebugSection handleAddXP to update totalXP and concurrentLimit
- #252: Marked duplicate of #250

docs/project-structure.txt

@@ -19,10 +19,6 @@ Mana-Loop/
 │   ├── enchanter-happy-path.spec.ts
 │   ├── fabricator-happy-path.spec.ts
 │   └── playtest.spec.ts
-├── playwright-report/
-│   ├── data/
-│   │   └── 199a0ed84e7318aab410b0ec2f96ea8f6478a4da.png
-│   └── index.html
 ├── public/
 │   ├── fonts/
 │   │   ├── GeistMonoVF.woff