Build MVP: campaigns, characters, combat, dice, compendium

- Rules abstraction (5e + pf2e) behind one interface, fully tested
- Pure combat engine: turn-order safe across add/remove/reorder/init-change
- Dexie storage with real cascade deletes + Zod validation on write
- Seedable dice engine with notation parser
- Lazy SRD compendium (code-split), bestiary -> combat
- Strict TS, 54 unit tests, Playwright e2e smoke (all green)

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

vite.config.ts

@@ -1,4 +1,3 @@
-/// <reference types="vitest/config" />
 import { defineConfig } from 'vite';
 import react from '@vitejs/plugin-react';
 import tailwindcss from '@tailwindcss/vite';
@@ -56,11 +55,4 @@ export default defineConfig({
       '@': fileURLToPath(new URL('./src', import.meta.url)),
     },
   },
-  test: {
-    globals: true,
-    environment: 'jsdom',
-    setupFiles: ['./vitest.setup.ts'],
-    css: false,
-    exclude: ['**/node_modules/**', '**/e2e/**', '**/dist/**'],
-  },
 });