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/jest.globalSetup.integration.js

@@ -0,0 +1,50 @@
+// Global setup for integration tests
+module.exports = async () => {
+  console.log('🔧 Setting up integration test environment...')
+  
+  // Wait for Docker services to be ready
+  const maxWaitTime = 60000 // 1 minute
+  const checkInterval = 2000 // 2 seconds
+  let waitTime = 0
+  
+  const checkServices = async () => {
+    try {
+      const { fetch } = require('undici')
+      
+      // Check if Next.js app is ready
+      const response = await fetch('http://localhost:3000/api/health', {
+        timeout: 5000
+      })
+      
+      if (response.ok) {
+        console.log('✅ Docker services are ready!')
+        return true
+      }
+    } catch (error) {
+      // Services not ready yet
+    }
+    return false
+  }
+  
+  // Only check services if INTEGRATION_TESTS is enabled
+  if (process.env.INTEGRATION_TESTS === '1' || process.env.E2E_TESTS === '1') {
+    console.log('⏳ Waiting for Docker services to be ready...')
+    
+    while (waitTime < maxWaitTime) {
+      if (await checkServices()) {
+        break
+      }
+      
+      await new Promise(resolve => setTimeout(resolve, checkInterval))
+      waitTime += checkInterval
+      
+      if (waitTime % 10000 === 0) {
+        console.log(`⏳ Still waiting... (${waitTime / 1000}s elapsed)`)
+      }
+    }
+    
+    if (waitTime >= maxWaitTime) {
+      console.warn('⚠️  Docker services may not be fully ready. Tests might fail.')
+    }
+  }
+}