feat(userbot): add Kubernetes control panel

Manage Telegram instances through Kubernetes with legacy adoption for forust and anna. Build and deploy the panel image alongside the runtime.

userbot/panel/frontend/vite.config.ts

@@ -0,0 +1,15 @@
+import { svelte } from "@sveltejs/vite-plugin-svelte";
+import { defineConfig } from "vite";
+
+export default defineConfig({
+  plugins: [svelte()],
+  build: {
+    outDir: "dist",
+    emptyOutDir: true,
+  },
+  server: {
+    proxy: {
+      "/api": "http://127.0.0.1:8080",
+    },
+  },
+});