Add Mapbox static map generation for non-JavaScript users

- Implement MapImageService using Mapbox Static Images API
- Add server-side /table route with HTML form submission
- Generate static map images with auto-fit positioning based on actual location coordinates
- Add progressive enhancement with noscript fallbacks and Basic View button
- Update map center coordinates to proper Grand Rapids location
- Add numbered pins with color coding (red for regular, orange for persistent reports)
- Remove server-side caching to ensure fresh map images
- Fix theme toggle icon centering in CSS mixins

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

package.json

@@ -22,11 +22,13 @@
     "postinstall": "npm run build-css"
   },
   "dependencies": {
+    "canvas": "^3.1.2",
     "cors": "^2.8.5",
     "dotenv": "^17.0.1",
     "express": "^4.18.2",
     "express-rate-limit": "^7.5.1",
     "node-cron": "^3.0.3",
+    "sharp": "^0.34.2",
     "sqlite3": "^5.1.6",
     "swagger-jsdoc": "^6.2.8",
     "swagger-ui-express": "^5.0.1"