feat: initialize NestJS application with global error handling and response standardization

- Added nest-cli.json for NestJS configuration.
- Created package.json with dependencies and scripts for building, testing, and linting.
- Implemented AppController and AppService with a basic "Hello World!" response.
- Introduced ContextModule and ContextService for managing request-scoped context.
- Developed custom decorators for response messages and standardized error handling.
- Created global exception filter to handle various error types and format responses.
- Implemented response standardization interceptor to wrap successful responses.
- Added middleware for generating unique request IDs.
- Established DTOs for API responses and error handling.
- Configured TypeScript settings for the project.
- Set up Jest for testing with end-to-end test cases.

tsconfig.json

@@ -0,0 +1,25 @@
+{
+  "compilerOptions": {
+    "module": "nodenext",
+    "moduleResolution": "nodenext",
+    "resolvePackageJsonExports": true,
+    "esModuleInterop": true,
+    "isolatedModules": true,
+    "declaration": true,
+    "removeComments": true,
+    "emitDecoratorMetadata": true,
+    "experimentalDecorators": true,
+    "allowSyntheticDefaultImports": true,
+    "target": "ES2023",
+    "sourceMap": true,
+    "outDir": "./dist",
+    "baseUrl": "./",
+    "incremental": true,
+    "skipLibCheck": true,
+    "strictNullChecks": true,
+    "forceConsistentCasingInFileNames": true,
+    "noImplicitAny": false,
+    "strictBindCallApply": false,
+    "noFallthroughCasesInSwitch": false
+  }
+}