初始提交：三玩法 Web 原型与设计文档

- 玩法一 数字一笔：规则库、求解器、26 关、竖屏触摸 Web 原型、测试
- 玩法二 连连气球：连消畅玩版核心、Web 原型、Cocos 球槽组件与导出脚本
- 玩法三 六边一笔：规则库、求解器、10 关 + 转墙实验包、Web 原型、测试
- 产品文档、UI 设计规范、各玩法 GDD / HANDOFF
- 文档移除全部外部参考作引用；删除玩法二 v0 旧稿

modes/02-connect-1234/package.json

@@ -0,0 +1,24 @@
+{
+  "name": "connect-1234",
+  "version": "2.0.0",
+  "private": true,
+  "type": "module",
+  "description": "连连气球 · 连消合成畅玩版，纯 TypeScript 核心，可迁移 Cocos Creator",
+  "scripts": {
+    "dev": "node scripts/build.mjs --serve",
+    "build": "node scripts/build.mjs",
+    "typecheck": "tsc -p tsconfig.json && tsc -p tsconfig.core.json",
+    "test": "node --import tsx --test tests/*.test.ts",
+    "validate": "node --import tsx tools/validate-flow.ts",
+    "check": "npm run typecheck && npm run test && npm run validate && npm run build",
+    "cocos:export": "node scripts/export-cocos.mjs",
+    "cocos:check": "npm run cocos:export && node scripts/check-cocos.mjs",
+    "validate:legacy": "node --import tsx tools/validate.ts"
+  },
+  "devDependencies": {
+    "@types/node": "^22.7.0",
+    "esbuild": "^0.24.0",
+    "tsx": "^4.19.0",
+    "typescript": "^5.6.0"
+  }
+}