feat: Add comprehensive documentation suite and reorganize project structure

- Created complete documentation in docs/ directory
- Added PROJECT_OVERVIEW.md with feature highlights and getting started guide
- Added ARCHITECTURE.md with system design and technical details
- Added SECURITY.md with comprehensive security implementation guide
- Added DEVELOPMENT.md with development workflows and best practices
- Added DEPLOYMENT.md with production deployment instructions
- Added API.md with complete REST API documentation
- Added CONTRIBUTING.md with contribution guidelines
- Added CHANGELOG.md with version history and migration notes
- Reorganized all documentation files into docs/ directory for better organization
- Updated README.md with proper documentation links and quick navigation
- Enhanced project structure with professional documentation standards

f_scripts/shared/flagicon/flags/1x1/gw.svg

@@ -0,0 +1,13 @@
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+  <path fill="#ce1126" d="M0 0h256v512H0z"/>
+  <path fill="#fcd116" d="M256 0h256v256H256z"/>
+  <path fill="#009e49" d="M256 256h256v256H256z"/>
+  <g id="b" transform="matrix(85.33334 0 0 85.33334 128 256)">
+    <path id="a" d="M0-1v1h.5" transform="rotate(18 0 -1)"/>
+    <use height="100%" width="100%" xlink:href="#a" transform="scale(-1 1)"/>
+  </g>
+  <use height="100%" width="100%" xlink:href="#b" transform="rotate(72 128 256)"/>
+  <use height="100%" width="100%" xlink:href="#b" transform="rotate(144 128 256)"/>
+  <use height="100%" width="100%" xlink:href="#b" transform="rotate(-144 128 256)"/>
+  <use height="100%" width="100%" xlink:href="#b" transform="rotate(-72 128 256)"/>
+</svg>