Phase 1: player character depth

- Inventory + currency + encumbrance vs carrying capacity
- Class resources with correct short/long/daily rest recovery (applyRest)
- Spellcasting: slots (+pact), known/prepared spells, derived DC + attack
- Defenses: 5e death saves/inspiration/exhaustion, pf2e dying/wounded/hero points
- Derived weapon attacks + passive perception via extended RulesSystem
- Dexie v2 migration backfills new fields; debounced save flushes on pagehide
- 9 new unit tests, new character-depth e2e; all green

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/lib/db/db.ts

@@ -3,6 +3,7 @@ import type { Campaign } from '@/lib/schemas/campaign';
 import type { Character } from '@/lib/schemas/character';
 import type { Encounter } from '@/lib/schemas/encounter';
 import type { DiceRoll } from '@/lib/schemas/dice';
+import { characterDefaults } from '@/lib/schemas/character';
 
 /**
  * Single Dexie instance for the whole app. Dexie wraps IndexedDB transactions
@@ -26,6 +27,18 @@ export class TtrpgDatabase extends Dexie {
       encounters: 'id, campaignId, status',
       diceRolls: 'id, campaignId, createdAt',
     });
+
+    // v2 — Phase 1 character depth: backfill new fields on existing characters.
+    this.version(2).stores({}).upgrade(async (tx) => {
+      await tx
+        .table('characters')
+        .toCollection()
+        .modify((c: Record<string, unknown>) => {
+          for (const [key, value] of Object.entries(characterDefaults())) {
+            if (c[key] === undefined) c[key] = value;
+          }
+        });
+    });
   }
 }