feat: refactor project structure and remove helm charts

- Update .gitignore with improved patterns
- Remove helm charts directory and related Kubernetes manifests
- Update auth and post submodules with latest changes
- Clean up project structure for better maintainability

Author: hmake98

.gitignore

@@ -1,3 +1,73 @@
-node_modules
-!.vscode
-yarn.lock
+# Dependencies
+node_modules/
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+yarn.lock
+package-lock.json
+
+# Environment variables
+.env
+.env.local
+.env.development
+.env.test
+.env.production
+
+# Build outputs
+dist/
+build/
+
+# Logs
+logs/
+*.log
+
+# Runtime data
+pids/
+*.pid
+*.seed
+*.pid.lock
+
+# Coverage directory used by tools like istanbul
+coverage/
+*.lcov
+
+# nyc test coverage
+.nyc_output/
+
+# IDE and editors
+.vscode/
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+.idea/
+*.swp
+*.swo
+*~
+
+# OS generated files
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db
+
+# Docker
+.dockerignore
+
+# Temporary folders
+tmp/
+temp/
+
+# Helm charts (if generated)
+helm/
+
+# Database
+*.db
+*.sqlite
+*.sqlite3
+
+# Redis dump
+dump.rdb