test: add xtream-mock-server with initial implementation

- Created project structure and configuration for xtream-mock-server.
- Implemented data generation for live, VOD, and series content using Faker.js.
- Developed API handlers for account info, categories, streams, and series information.
- Added caching mechanisms for portal data and details.
- Implemented scenario management for user credentials and account status.
- Set up Express server with health check and reset endpoints.
- Configured TypeScript settings for the project.

Entire-Checkpoint: 815a29d0e5a4

apps/xtream-mock-server/tsconfig.json

@@ -0,0 +1,16 @@
+{
+    "compilerOptions": {
+        "target": "ES2022",
+        "module": "CommonJS",
+        "moduleResolution": "node",
+        "lib": ["ES2022"],
+        "outDir": "../../dist/apps/xtream-mock-server",
+        "rootDir": "src",
+        "strict": true,
+        "esModuleInterop": true,
+        "skipLibCheck": true,
+        "resolveJsonModule": true
+    },
+    "include": ["src/**/*.ts"],
+    "exclude": ["node_modules", "dist"]
+}