docs: add research domains and resource registry

- add local external resources registry
- add research domain contract and per-repository research domains
- add raw fact snapshot governance and validation scripts

Validation:
- make test
- git diff --check HEAD~1..HEAD

Note:
- welcome workflow failed because its action input names are stale; core content CI passed.

docs/research/liyupi-ai-guide/raw/github-repo.raw.json

@@ -0,0 +1,87 @@
+{
+  "createdAt": "2025-02-13T05:47:46Z",
+  "defaultBranchRef": {
+    "name": "main"
+  },
+  "description": "程序员鱼皮的 AI 资源大全 + Vibe Coding 零基础教程，分享 OpenClaw 保姆级教程、大模型玩法（DeepSeek / GPT / Gemini / Claude / GLM）、最新 AI 资讯、Prompt 提示词大全、AI 知识百科（Agent Skills / RAG / MCP / A2A）、AI 编程教程（Harness Engineering）、AI 工具用法（Cursor / Claude Code / TRAE / Codex / Copilot）、AI 开发框架教程（Spring AI / LangChain）、AI 产品变现指南，帮你快速掌握 AI 技术，走在时代前沿。本项目为开源文档 aiguide，已升级为鱼皮 AI 导航网站",
+  "forkCount": 1860,
+  "homepageUrl": "https://ai.codefather.cn",
+  "isArchived": false,
+  "isFork": false,
+  "isMirror": false,
+  "latestRelease": null,
+  "licenseInfo": null,
+  "nameWithOwner": "liyupi/ai-guide",
+  "primaryLanguage": {
+    "name": "JavaScript"
+  },
+  "pushedAt": "2026-07-01T14:44:50Z",
+  "repositoryTopics": [
+    {
+      "name": "ai"
+    },
+    {
+      "name": "artificial-intelligence"
+    },
+    {
+      "name": "chatgpt"
+    },
+    {
+      "name": "deep-learning"
+    },
+    {
+      "name": "deepseek"
+    },
+    {
+      "name": "generative-ai"
+    },
+    {
+      "name": "gpt"
+    },
+    {
+      "name": "llm"
+    },
+    {
+      "name": "openai"
+    },
+    {
+      "name": "python"
+    },
+    {
+      "name": "vue"
+    },
+    {
+      "name": "vuepress"
+    },
+    {
+      "name": "claude"
+    },
+    {
+      "name": "gemini"
+    },
+    {
+      "name": "cursor"
+    },
+    {
+      "name": "mcp"
+    },
+    {
+      "name": "rag"
+    },
+    {
+      "name": "vibe-coding"
+    },
+    {
+      "name": "vibecoding"
+    },
+    {
+      "name": "codex"
+    }
+  ],
+  "stargazerCount": 16661,
+  "updatedAt": "2026-07-02T16:45:48Z",
+  "url": "https://github.com/liyupi/ai-guide",
+  "watchers": {
+    "totalCount": 112
+  }
+}