feat: update port configurations for backend and frontend; adjust Dockerfile and docker-compose settings

frontend/Dockerfile

@@ -7,6 +7,6 @@ RUN npm install
 
 COPY . .
 
-EXPOSE 3003
+EXPOSE 7002
 
 CMD ["npm", "start"]

frontend/vite.config.ts

@@ -2,4 +2,11 @@ import { defineConfig } from "vite";
 import tailwindcss from "@tailwindcss/vite";
 export default defineConfig({
   plugins: [tailwindcss()],
+    server: {
+    host: "0.0.0.0",
+    port: 7002,
+    watch: {
+      usePolling: true,
+    },
+  },
 });