chore: update test configs and opening data

- Update jest.config.ts for new test structure
- Update playwright.config.ts for e2e test setup
- Update opening database files (12,379 entries)

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Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

package.json

@@ -14,6 +14,7 @@
     "test:e2e:headed": "playwright test --headed",
     "test:all": "npm test && npm run test:e2e",
     "build:opening-index": "node scripts/buildOpeningIndex.js",
+    "generate:test-fixtures": "npx tsx scripts/generate-test-fixtures.ts",
     "cache:wikipedia": "tsx scripts/fetch-wikipedia-openings.ts",
     "update:wikipedia-slugs": "tsx scripts/add-wikipedia-to-openings.ts",
     "build:mobile": "./scripts/build-mobile.sh",