feat: frontend uses relative API path (#34)

kontrol-frontend/.env.dev

@@ -1,5 +1,3 @@
-# default: use local kontrol API
-VITE_API_URL=http://localhost:8080
-
-# uncomment to use production kontrol API proxy locally
-# VITE_API_URL=http://localhost:5173/api
+# default: use local kontrol API.
+# To use production API, change the proxy target in vite.config.ts
+VITE_API_URL=/api

kontrol-frontend/.env.production

@@ -1 +1 @@
-VITE_API_URL=https://app.kardinal.dev/api
+VITE_API_URL=/api

kontrol-frontend/vite.config.ts

@@ -14,9 +14,14 @@ export default defineConfig(({ mode }) => {
     },
     server: {
       proxy: {
+        // local dev mode proxy, default is local kontrol service.
+        // change this to hit production etc if desired.
+        // in production, this behavior is handled by kardinal nginx ingress
         "/api": {
-          target: "https://app.kardinal.dev",
+          // target: "https://app.kardinal.dev",
+          target: "http://localhost:8080",
           changeOrigin: true,
+          rewrite: (path) => path.replace(/^\/api/, ""),
         },
       },
     },