Support VITE_CACHE_DIR environment variable for custom cache directory

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

vite.config.js

@@ -15,9 +15,10 @@ import { defineConfig, loadEnv } from "vite";
 import vue from "@vitejs/plugin-vue";
 
 export default defineConfig(({ mode }) => {
-  const env = loadEnv(mode, process.cwd()).VUE_APP_API_URL;
+  const env = loadEnv(mode, process.cwd());
 
   return{
+    cacheDir: env.VITE_CACHE_DIR || undefined,
     plugins: [vue()],
     base: '/',
     resolve: {
@@ -32,7 +33,7 @@ export default defineConfig(({ mode }) => {
       port: 58249,
       proxy: {
         '/api': {
-          target: env,
+          target: env.VUE_APP_API_URL,
           changeOrigin: true,
           rewrite: path => path.replace(/^\/api/, ''),
         }