feat: build an AI agent from 0 to 1 -- 11 progressive sessions

- 11 sessions from basic agent loop to autonomous teams
- Python MVP implementations for each session
- Mental-model-first docs in en/zh/ja
- Interactive web platform with step-through visualizations
- Incremental architecture: each session adds one mechanism

web/package.json

@@ -0,0 +1,38 @@
+{
+  "name": "web",
+  "version": "0.1.0",
+  "private": true,
+  "scripts": {
+    "extract": "tsx scripts/extract-content.ts",
+    "predev": "npm run extract",
+    "dev": "next dev",
+    "prebuild": "npm run extract",
+    "build": "next build",
+    "start": "next start"
+  },
+  "dependencies": {
+    "diff": "^8.0.3",
+    "framer-motion": "^12.34.0",
+    "lucide-react": "^0.564.0",
+    "next": "16.1.6",
+    "react": "19.2.3",
+    "react-dom": "19.2.3",
+    "rehype-highlight": "^7.0.2",
+    "rehype-raw": "^7.0.0",
+    "rehype-stringify": "^10.0.1",
+    "remark-gfm": "^4.0.1",
+    "remark-parse": "^11.0.0",
+    "remark-rehype": "^11.1.2",
+    "tsx": "^4.21.0",
+    "unified": "^11.0.5"
+  },
+  "devDependencies": {
+    "@tailwindcss/postcss": "^4",
+    "@types/diff": "^7.0.2",
+    "@types/node": "^20",
+    "@types/react": "^19",
+    "@types/react-dom": "^19",
+    "tailwindcss": "^4",
+    "typescript": "^5"
+  }
+}