feat: GeoScene frontend POC + Docker deploy for remote host

Migrate maps to @geoscene/core, polish monitoring/alerts UX, fix timeline
basemap flicker and district alert regions, and ship compose/nginx Docker
deploy assets with CBPOA_ROOT data mounts.

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/vite.config.ts

@@ -9,6 +9,9 @@ export default defineConfig({
       '@': path.resolve(__dirname, './src'),
     },
   },
+  optimizeDeps: {
+    exclude: ['@geoscene/core'],
+  },
   server: {
     port: 3000,
     allowedHosts: ['alpha.hyh.ink'],
@@ -17,6 +20,17 @@ export default defineConfig({
         target: 'http://localhost:8000',
         changeOrigin: true,
       },
+      // Same-origin Gaode tiles — WebTileLayer needs CORS; direct autonavi URLs fail.
+      '/basemap-gaode': {
+        target: 'https://webrd01.is.autonavi.com',
+        changeOrigin: true,
+        rewrite: (p) => {
+          const m = p.match(/^\/basemap-gaode\/(\d+)\/(\d+)\/(\d+)/);
+          if (!m) return p;
+          const [, z, x, y] = m;
+          return `/appmaptile?lang=zh_cn&size=1&scale=1&style=8&z=${z}&x=${x}&y=${y}`;
+        },
+      },
     },
   },
   preview: {