feat(web): scaffold client-side rendered SPA foundation

- feat: initialize Vite project with React 19, React Router 8, TanStack
  Query, Ant Design 6, and Tailwind CSS 4
- feat: add Oxlint with React/TypeScript rules, strict TypeScript
  config, and layered CSS import order
- docs: add decision record for client-rendered Web foundation with
  React, Ant Design, and Tailwind CSS
- docs: create web roadmap defining architecture boundaries and deferred
  dependencies
- build: pin Node.js 24 in mise.toml

web/package.json

@@ -0,0 +1,36 @@
+{
+  "name": "mygo-web",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "engines": {
+    "node": ">=24 <25"
+  },
+  "packageManager": "npm@11.9.0",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc -b && vite build",
+    "lint": "oxlint",
+    "typecheck": "tsc -b",
+    "check": "npm run lint && npm run build",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+    "@tanstack/react-query": "^5.101.2",
+    "antd": "^6.5.1",
+    "react": "^19.2.7",
+    "react-dom": "^19.2.7",
+    "react-router": "^8.2.0"
+  },
+  "devDependencies": {
+    "@tailwindcss/vite": "^4.3.2",
+    "@types/node": "^24.13.2",
+    "@types/react": "^19.2.17",
+    "@types/react-dom": "^19.2.3",
+    "@vitejs/plugin-react": "^6.0.3",
+    "oxlint": "^1.71.0",
+    "tailwindcss": "^4.3.2",
+    "typescript": "~6.0.2",
+    "vite": "^8.1.1"
+  }
+}