feat(vscodex): add remote Codex collaboration module

aether-vscodex/web/vite.config.ts

@@ -0,0 +1,45 @@
+/// <reference types="vitest/config" />
+
+import { fileURLToPath, URL } from "node:url";
+
+import vue from "@vitejs/plugin-vue";
+import { defineConfig } from "vite";
+
+const relayTarget = "http://127.0.0.1:8787";
+
+export default defineConfig({
+  // Relative assets let the same build run at the local relay root and under
+  // Aether's /aether-vscodex/ static subpath.
+  base: "./",
+  plugins: [vue()],
+  resolve: {
+    alias: {
+      "@": fileURLToPath(new URL("./src", import.meta.url)),
+    },
+  },
+  server: {
+    fs: {
+      allow: [fileURLToPath(new URL("..", import.meta.url))],
+    },
+    proxy: {
+      "/api": {
+        target: relayTarget,
+        changeOrigin: true,
+      },
+      "/ws": {
+        target: relayTarget.replace("http", "ws"),
+        changeOrigin: true,
+        ws: true,
+      },
+    },
+  },
+  build: {
+    outDir: "dist",
+    emptyOutDir: true,
+    assetsInlineLimit: 0,
+  },
+  test: {
+    environment: "jsdom",
+    include: ["tests/**/*.test.ts"],
+  },
+});