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/functional-area-report.md

@@ -0,0 +1,21 @@
+# Functional Area Test Report - 2025-09-05
+
+## 📊 Summary by Functional Area
+
+### contact ✅
+- **Total Tests**: 1
+- **Passed**: 1 (100%)
+- **Failed**: 0
+- **Skipped**: 0
+
+**Test Cases:**
+- TC-001: TC-001: should detect invalid email formats (passed)
+
+## 📈 Recommendations
+1. Fix failed tests in problem areas
+2. Add missing test cases for uncovered functionality
+3. Improve test coverage in weak areas
+4. Set up automated monitoring for test health
+
+---
+*Generated: 2025-09-05T15:23:53.908Z*