Initial commit: img-infinite-canvas AI design workbench MVP

Moteva-style AI design workbench replica. Home prompt creates a project;
the project page provides an infinite canvas with node drag, zoom/pan,
a design chat panel, history replay, image asset upload, and project
save/regenerate.

- Backend: go-zero, DDD layering, sqlc/pgx, optional PostgreSQL; memory
  or Redis cache; asynq job queue; MinIO/S3/R2/OSS object storage;
  sky-valley/pi agent runtime adapter.
- Frontend: Next.js App Router + Vite artifact build, TypeScript, i18n,
  shadcn/ui components, auth (OTP/Turnstile/Google/WeChat).
- Deploy: Docker Compose and k3s manifests.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

frontend/vite.config.js

@@ -0,0 +1,31 @@
+import react from "@vitejs/plugin-react";
+import { fileURLToPath, URL } from "node:url";
+import { defineConfig } from "vite";
+import { compression } from "vite-plugin-compression2";
+export default defineConfig({
+    resolve: {
+        alias: {
+            "@": fileURLToPath(new URL("./src", import.meta.url))
+        }
+    },
+    plugins: [
+        react(),
+        compression({
+            algorithms: ["gzip"],
+            include: /\.(js|mjs|json|css|html|svg)$/i
+        })
+    ],
+    server: {
+        port: 5173,
+        proxy: {
+            "/api": {
+                target: "http://localhost:8888",
+                changeOrigin: true,
+                ws: true
+            }
+        }
+    },
+    build: {
+        sourcemap: true
+    }
+});