init: 微信小游戏项目初始化

基础工程骨架：game.js 入口、Canvas 渲染、DevTools 项目配置。
包含 CLAUDE.md / AGENTS.md 及 KB 知识库接入。

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.gitignore

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+# macOS
+.DS_Store
+
+# IDE
+.idea/
+.vscode/
+
+# WeChat DevTools
+node_modules/
+miniprogram_npm/
+*.wasm
+
+# Build
+dist/
+
+# Environment
+.env
+.env.local

AGENTS.md

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+<!-- BRIEFING: auto-maintained -->
+## Project State
+- **Project**: wechat-minigame — 微信小游戏
+- **Stage**: 初始化
+- **Last action**: project init
+- **Next task**: 讨论游戏类型、玩法设计和技术方案，制定开发计划
+- **Hard constraints**: Canvas rendering | 4MB first package | No DOM/BOM | 60fps target
+- **KB**: ~/pro/kb/projects/wechat-minigame/
+<!-- END BRIEFING -->
+
+## Project Structure
+
+```
+game.js              # Entry point
+game.json            # Global config
+project.config.json  # DevTools project config
+js/                  # Game logic
+images/              # Image assets
+audio/               # Audio assets
+```
+
+## Build & Dev Commands
+
+No CLI build/test commands. Use WeChat DevTools for preview and debugging.
+
+## Coding Style
+
+- ES6+ modules (import/export)
+- Canvas-based rendering, no DOM
+- Data files use JS module wrapping (no JSON require)

CLAUDE.md

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+# wechat-minigame
+
+<!-- BRIEFING: auto-maintained, do not edit manually -->
+## 项目速览
+- **项目**：wechat-minigame — 微信小游戏
+- **阶段**：初始化
+- **上次结论**：项目初始化
+- **下一步**：与 Codex 讨论游戏类型、玩法设计和技术方案
+- **关键约束**：Canvas 渲染 | 首包 4MB | 无 DOM/BOM | 60fps 目标
+- **KB 指针**：~/pro/kb/projects/wechat-minigame/
+<!-- END BRIEFING -->
+
+## 开发环境
+
+- 平台：微信小游戏（非小程序）
+- 渲染：Canvas 2D / WebGL
+- 调试工具：微信开发者工具
+- 无 npm/build/test CLI，在 DevTools 中模拟器验证
+
+## 项目结构
+
+```
+game.js              # 入口
+game.json            # 全局配置
+project.config.json  # DevTools 项目配置
+js/                  # 游戏逻辑
+images/              # 图片素材
+audio/               # 音频素材
+```
+
+## 平台约束
+
+- `require()` 不支持 JSON，数据用 JS module 包装
+- 首包 ≤ 4MB，分包总计 ≤ 20MB
+- 不支持 DOM/BOM，仅微信 API 子集
+- Canvas 是全局单例，通过 `wx.createCanvas()` 获取

game.js

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+import './js/main'

game.json

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+{
+  "deviceOrientation": "portrait",
+  "showStatusBar": false,
+  "networkTimeout": {
+    "request": 5000,
+    "connectSocket": 5000,
+    "uploadFile": 5000,
+    "downloadFile": 5000
+  }
+}

js/main.js

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+const { windowWidth, windowHeight } = wx.getSystemInfoSync()
+
+const canvas = wx.createCanvas()
+const ctx = canvas.getContext('2d')
+
+ctx.fillStyle = '#ffffff'
+ctx.fillRect(0, 0, windowWidth, windowHeight)
+
+ctx.fillStyle = '#333333'
+ctx.font = '24px sans-serif'
+ctx.textAlign = 'center'
+ctx.fillText('微信小游戏', windowWidth / 2, windowHeight / 2)

project.config.json

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+{
+  "miniprogramRoot": "./",
+  "setting": {
+    "urlCheck": true,
+    "es6": true,
+    "enhance": true,
+    "postcss": true,
+    "preloadBackgroundData": false,
+    "minified": true,
+    "newFeature": false,
+    "coverView": true,
+    "nodeModules": false,
+    "autoAudits": false,
+    "showShadowRootInWxmlPanel": true,
+    "scopeDataCheck": false,
+    "uglifyFileName": false,
+    "checkInvalidKey": true,
+    "checkSiteMap": true,
+    "uploadWithSourceMap": true,
+    "compileHotReLoad": false,
+    "lazyloadPlaceholderEnable": false,
+    "useMultiFrameRuntime": true,
+    "useApiHook": true,
+    "useApiHostProcess": true,
+    "babelSetting": {
+      "ignore": [],
+      "disablePlugins": [],
+      "outputPath": ""
+    },
+    "useIsolateContext": true,
+    "userConfirmedBundleSwitch": false,
+    "packNpmManually": false,
+    "packNpmRelationList": [],
+    "minifyWXSS": true,
+    "showES6CompileOption": false
+  },
+  "compileType": "game",
+  "appid": "",
+  "projectname": "wechat-minigame",
+  "condition": {}
+}