docs(site): 去掉 fork 框定与上游链接，页脚增加生态/社区入口

按项目方要求，官网不再以"基于 obra/superpowers 的中文增强 fork"自我定位：
- 页脚版权改为 © 2026 superpowers-zh · MIT License（中英）
- 移除页脚资源区的"上游 obra/superpowers"链接（中英）
- FAQ"和上游关系"条改写为"superpowers-zh 有哪些独特价值"，以独立中文
  项目视角介绍，不再用 fork 框定（中英）
- 页脚新增「生态」列：aiOlaOla（从零学会 AI 编程）、公众号 AI不止语、
  姐妹项目；「社区」列新增联系邮箱

验证：重建 42 页；页脚/FAQ 的 fork 字样与上游链接已清除；新链接均已注入。

site/build.mjs

@@ -139,11 +139,12 @@ const T = {
     ctaBtn1: '查看安装命令', ctaBtn2: '⭐ Star on GitHub',
     footCols: [
       { h: '产品', links: [['特性', '#why'], ['Skills', '#skills'], ['支持工具', '#tools'], ['FAQ', '#faq']] },
-      { h: '资源', links: [['GitHub', 'https://github.com/jnMetaCode/superpowers-zh'], ['npm', 'https://www.npmjs.com/package/superpowers-zh'], ['上游 obra/superpowers', 'https://github.com/obra/superpowers'], ['方法论三卷书', 'https://book.aibuzhiyu.com/']] },
-      { h: '社区', links: [['提交 Issue', 'https://github.com/jnMetaCode/superpowers-zh/issues'], ['贡献指南', 'https://github.com/jnMetaCode/superpowers-zh/blob/main/CLAUDE.md']] },
+      { h: '资源', links: [['GitHub', 'https://github.com/jnMetaCode/superpowers-zh'], ['npm', 'https://www.npmjs.com/package/superpowers-zh'], ['方法论三卷书', 'https://book.aibuzhiyu.com/']] },
+      { h: '生态', links: [['aiOlaOla · 从零学会 AI 编程', 'https://aiolaola.com/'], ['公众号 AI不止语', 'https://aiolaola.com/'], ['姐妹项目', 'https://github.com/jnMetaCode']] },
+      { h: '社区', links: [['提交 Issue', 'https://github.com/jnMetaCode/superpowers-zh/issues'], ['贡献指南', 'https://github.com/jnMetaCode/superpowers-zh/blob/main/CLAUDE.md'], ['联系邮箱', 'mailto:jnMetaCode@qq.com']] },
     ],
     footTag: 'AI 编程超能力 · 中文增强版 · MIT License',
-    copyright: '© 2026 superpowers-zh · 基于 <a href="https://github.com/obra/superpowers" target="_blank" rel="noopener">obra/superpowers</a> 的中文增强 fork',
+    copyright: '© 2026 superpowers-zh · MIT License',
     copy: '复制', copied: '已复制 ✓',
     backToSkills: '← 返回全部 Skill',
     detailInstall: '安装此 skill',
@@ -173,7 +174,7 @@ const T = {
     faq: [
       { q: 'superpowers-zh 是免费的吗？', a: '完全免费。MIT 协议开源，永久免费，不含任何付费墙或订阅。' },
       { q: '支持哪些 AI 编程工具？', a: '共 18 款：Claude Code、Cursor、Windsurf、Codex CLI、Gemini CLI、Kiro、Trae、Qoder、Aider、OpenCode、Qwen Code、Antigravity、DeerFlow、VS Code(Copilot)、Copilot CLI、Hermes Agent、Claw Code、OpenClaw。' },
-      { q: '和上游 obra/superpowers 是什么关系？', a: '本项目是 obra/superpowers（159k+ ⭐）的中文增强 fork：完整汉化上游全部核心 skill，并叠加 4 个面向中国开发者的原创 skill。中文化与中国特色内容只在本 fork 提供。' },
+      { q: 'superpowers-zh 有哪些独特价值？', a: '一套完整中文化的系统工作方法论：从头脑风暴、规划、TDD 到调试、代码审查，每个 skill 都是实战验证的工作流；并叠加 4 个面向中国开发者的原创 skill（中文代码审查 / Git 工作流 / 文档规范 / 提交规范），适配 18 款 AI 编程工具。MIT 协议开源，永久免费。' },
       { q: '安装后怎么生效？', a: 'npx 会把 skill 文件装到你项目对应工具的目录（如 .claude/skills/），重启 AI 工具后，它会在恰当时机自动触发相应 skill —— 无需你每次手动调用。' },
       { q: '会拖慢我的 AI 吗？会上传代码吗？', a: '不会。skill 是按需触发的纯 Markdown，零运行时、不联网、不上传任何代码或数据，全程在本地。' },
       { q: '怎么更新或卸载？', a: '更新：重新运行 npx superpowers-zh 覆盖即可。卸载：npx superpowers-zh --uninstall 清理已安装的 skill 与 bootstrap 文件。' },
@@ -222,11 +223,12 @@ const T = {
     ctaBtn1: 'Get the command', ctaBtn2: '⭐ Star on GitHub',
     footCols: [
       { h: 'Product', links: [['Features', '#why'], ['Skills', '#skills'], ['Tools', '#tools'], ['FAQ', '#faq']] },
-      { h: 'Resources', links: [['GitHub', 'https://github.com/jnMetaCode/superpowers-zh'], ['npm', 'https://www.npmjs.com/package/superpowers-zh'], ['Upstream obra/superpowers', 'https://github.com/obra/superpowers'], ['Methodology book', 'https://book.aibuzhiyu.com/']] },
-      { h: 'Community', links: [['Open an Issue', 'https://github.com/jnMetaCode/superpowers-zh/issues'], ['Contributing', 'https://github.com/jnMetaCode/superpowers-zh/blob/main/CLAUDE.md']] },
+      { h: 'Resources', links: [['GitHub', 'https://github.com/jnMetaCode/superpowers-zh'], ['npm', 'https://www.npmjs.com/package/superpowers-zh'], ['Methodology book', 'https://book.aibuzhiyu.com/']] },
+      { h: 'Ecosystem', links: [['aiOlaOla', 'https://aiolaola.com/'], ['Sister projects', 'https://github.com/jnMetaCode']] },
+      { h: 'Community', links: [['Open an Issue', 'https://github.com/jnMetaCode/superpowers-zh/issues'], ['Contributing', 'https://github.com/jnMetaCode/superpowers-zh/blob/main/CLAUDE.md'], ['Contact', 'mailto:jnMetaCode@qq.com']] },
     ],
     footTag: 'AI coding superpowers · Chinese-enhanced · MIT License',
-    copyright: '© 2026 superpowers-zh · A Chinese-enhanced fork of <a href="https://github.com/obra/superpowers" target="_blank" rel="noopener">obra/superpowers</a>',
+    copyright: '© 2026 superpowers-zh · MIT License',
     copy: 'Copy', copied: 'Copied ✓',
     backToSkills: '← Back to all skills',
     detailInstall: 'Install this skill set',
@@ -256,7 +258,7 @@ const T = {
     faq: [
       { q: 'Is superpowers-zh free?', a: 'Completely free. MIT-licensed open source, forever, with no paywall or subscription.' },
       { q: 'Which AI coding tools are supported?', a: '18 tools: Claude Code, Cursor, Windsurf, Codex CLI, Gemini CLI, Kiro, Trae, Qoder, Aider, OpenCode, Qwen Code, Antigravity, DeerFlow, VS Code (Copilot), Copilot CLI, Hermes Agent, Claw Code, OpenClaw.' },
-      { q: 'How does it relate to obra/superpowers?', a: 'This is a Chinese-enhanced fork of obra/superpowers (159k+ ⭐): a full localization of all core skills plus 4 China-native skills. The localization and China-specific content live only in this fork.' },
+      { q: 'What makes superpowers-zh unique?', a: 'A fully localized, battle-tested methodology framework for Chinese developers: brainstorming, planning, TDD, debugging, and code-review skills, plus 4 China-native skills (code review / Git workflow / docs / commit conventions), adapted for 18 AI coding tools. MIT-licensed and free forever.' },
       { q: 'How does it take effect after install?', a: 'npx installs skill files into your tool\'s directory (e.g. .claude/skills/). After restarting your AI tool, it auto-triggers the right skill at the right moment — no manual invocation needed.' },
       { q: 'Will it slow my AI down or upload my code?', a: 'No. Skills are on-demand Markdown: zero runtime, no network, no code or data upload — everything stays local.' },
       { q: 'How do I update or uninstall?', a: 'Update: re-run npx superpowers-zh to overwrite. Uninstall: npx superpowers-zh --uninstall removes installed skills and bootstrap files.' },