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/earyantle-vibe-coding-skill/raw/github-repo.raw.json

@@ -0,0 +1,40 @@
+{
+  "createdAt": "2026-03-23T11:14:03Z",
+  "defaultBranchRef": {
+    "name": "main"
+  },
+  "description": "",
+  "forkCount": 0,
+  "homepageUrl": "",
+  "isArchived": false,
+  "isFork": false,
+  "isMirror": false,
+  "latestRelease": null,
+  "licenseInfo": null,
+  "nameWithOwner": "earyantLe/vibe-coding-skill",
+  "primaryLanguage": null,
+  "pushedAt": "2026-03-23T12:51:33Z",
+  "repositoryTopics": [
+    {
+      "name": "ai-assistant"
+    },
+    {
+      "name": "canvas"
+    },
+    {
+      "name": "claude-skills"
+    },
+    {
+      "name": "glue-coding"
+    },
+    {
+      "name": "vibe-coding"
+    }
+  ],
+  "stargazerCount": 0,
+  "updatedAt": "2026-03-23T12:51:41Z",
+  "url": "https://github.com/earyantLe/vibe-coding-skill",
+  "watchers": {
+    "totalCount": 0
+  }
+}