Phase 2: MapLibre GL with OpenSeaMap navigation

- Integrated MapLibre GL for professional maritime mapping
- Combined OSM base maps with OpenSeaMap layer for nautical overlays
  * Seamarks, buoys, channels, and depth information
  * Fully styled with MapLibre-compatible tiles

- Created NavigationMap component with:
  * Real-time ship position marker with heading indicator
  * Automatic centering and smooth flyTo animations
  * Waypoint display with current waypoint highlighting
  * Ship track visualization (last 500 points, dashed line)
  * Route polyline showing waypoints

- Professional map controls:
  * Zoom in/out buttons with smooth animations
  * Center-on-ship button for quick navigation
  * Info panel showing current position, heading, speed, distance
  * Glassmorphic info panel with dark/light mode support

- Enhanced SignalK mock:
  * Added trackPoints array to record ship movement
  * Automatically maintains last 500 points for performance
  * Integrated with map for visual track history

- Updated Navigation page to use new map
- Build: 68 modules, 1.24 MB (343 KB gzipped)
- Hot module reloading working smoothly

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

dashboard/package.json

@@ -9,8 +9,11 @@
     "preview": "vite preview"
   },
   "dependencies": {
+    "leaflet": "^1.9.4",
+    "maplibre-gl": "^5.21.1",
     "react": "^18.3.1",
-    "react-dom": "^18.3.1"
+    "react-dom": "^18.3.1",
+    "react-leaflet": "^5.0.0"
   },
   "devDependencies": {
     "@vitejs/plugin-react": "^4.3.1",