fix: add localhost:9090 to CORS defaults; revert broken relative-URL and proxy changes

decnet_web/src/utils/api.ts

@@ -1,7 +1,7 @@
 import axios from 'axios';
 
 const api = axios.create({
-  baseURL: import.meta.env.VITE_API_URL || '/api/v1',
+  baseURL: import.meta.env.VITE_API_URL || 'http://localhost:8000/api/v1',
 });
 
 api.interceptors.request.use((config) => {

decnet_web/vite.config.ts

@@ -4,12 +4,4 @@ import react from '@vitejs/plugin-react'
 // https://vite.dev/config/
 export default defineConfig({
   plugins: [react()],
-  server: {
-    proxy: {
-      '/api': {
-        target: 'http://localhost:8000',
-        changeOrigin: true,
-      },
-    },
-  },
 })