feat: Add Docker config, Gitea workflow, and map improvements

- Add Dockerfile, nginx.conf, docker-compose.yml
- Add Gitea Actions workflow
- Improve map mobile UX (safe area, no pull-to-refresh)
- Persist map state (zoom, center, layer) to localStorage
- Add Google Hybrid map layer
- Configure Vite for Cloudflare tunnel

docker-compose.yml

@@ -0,0 +1,13 @@
+version: '3'
+services:
+  geo-words:
+    build: .
+    ports:
+      - "3002:80"
+    restart: always
+    networks:
+      - npm_public
+
+networks:
+  npm_public:
+    external: true