refactor[epic-games]: migrate to GraphQL API and modularize authentication logic

This commit refactors epic-games.js to use the GraphQL API instead of the legacy promotions endpoint for retrieving free games. Key architectural improvements include:

- Added modular authentication module (device-auths.ts) supporting persistent device auth tokens
- Introduces cookie management module (cookie.ts) for persistent session handling
- Extracts GraphQL query structures and API endpoints into constants.ts
- Implements multiple fallback strategies: device auth login, token exchange, and fallback to standard login
- Adds support for both GraphQL and promotions-based game discovery
- Streamlines claim process with improved tracking and error handling
- Removes legacy selectors and redundant logic

Additionally, updates package.json to include TypeScript and reorganizes dependency order for better maintainability.

package.json

@@ -20,12 +20,12 @@
     "node": ">=17"
   },
   "dependencies": {
+    "axios": "^1.7.9",
     "chalk": "^5.4.1",
     "cross-env": "^7.0.3",
     "dotenv": "^16.5.0",
     "enquirer": "^2.4.1",
     "fingerprint-injector": "^2.1.66",
-    "axios": "^1.7.9",
     "lowdb": "^7.0.1",
     "otplib": "^12.0.1",
     "playwright-firefox": "^1.52.0",
@@ -33,6 +33,7 @@
   },
   "devDependencies": {
     "@stylistic/eslint-plugin-js": "^4.2.0",
-    "eslint": "^9.26.0"
+    "eslint": "^9.26.0",
+    "typescript": "^5.9.3"
   }
 }