feat: enhance README and TODO documentation, implement mobile menu functionality in Header component

- Updated README.md with project details, quick start instructions, and tech stack.
- Expanded TODO.md to reflect current project status and backlog items, including Linear ticket synchronization.
- Added mobile menu toggle functionality in Header component with corresponding tests for user interactions.
- Configured Next.js for Docker deployment and optimized build settings.

proto/src/lib/mongodb.test.ts

@@ -30,7 +30,7 @@ jest.mock('mongodb', () => ({
 // Restore environment before tests
 const originalEnv = process.env
 
-describe('MongoDB Connection', () => {
+describe('MongoDB Connection (Unit Tests)', () => {
   beforeEach(() => {
     process.env = {
       ...originalEnv,

proto/src/lib/mongodb.ts

@@ -16,13 +16,13 @@ let clientPromise: Promise<MongoClient>
 
 // In development mode, use a global variable so that the client is not recreated between hot reloads
 if (process.env.NODE_ENV === 'development') {
-  // @ts-ignore
+  // @ts-expect-error - Global variable for development hot reload
   if (!global._mongoClientPromise) {
     client = new MongoClient(uri, options)
-    // @ts-ignore
+    // @ts-expect-error - Global variable for development hot reload
     global._mongoClientPromise = client.connect()
   }
-  // @ts-ignore
+  // @ts-expect-error - Global variable for development hot reload
   clientPromise = global._mongoClientPromise
 } else {
   // In production mode, it's best to not use a global variable