feat: Single-port deployment with improved error handling and SvelteKit static build

- Frontend now uses @sveltejs/adapter-static for production builds
- Backend serves both API and static files from single port (originally port 3000)
- Removed all throw statements from services to avoid Elysia prototype errors
- Fixed favicon serving and SvelteKit assets path handling
- Added ecosystem.config.js for PM2 process management
- Comprehensive deployment documentation (PM2 + HAProxy)
- Updated README with single-port architecture
- Created start.sh script for easy production start

.dockerignore

@@ -0,0 +1,53 @@
+# Dependencies
+node_modules
+bun.lockb
+*.log
+
+# Environment
+.env
+.env.*
+
+# Database
+**/*.db
+**/*.db-shm
+**/*.db-wal
+award.db
+
+# Build outputs
+src/frontend/build/
+src/frontend/.svelte-kit/
+src/frontend/dist/
+build/
+dist/
+
+# IDE
+.vscode
+.idea
+*.swp
+*.swo
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Git
+.git/
+.gitignore
+
+# Documentation
+README.md
+docs/
+*.md
+
+# Logs
+logs/
+*.log
+
+# PM2
+ecosystem.config.js
+.pm2/
+
+# Tests
+*.test.js
+*.test.ts
+coverage/