Sync third-party and MCP marketplace plugins

Constraint: Public skills are published only by explicit administrator action unless they are tracked third-party market sources.
Confidence: high
Scope-risk: narrow
Directive: Keep private/internal skills out of the public marketplace and preserve normal incremental market Git history.
Tested: Marketplace validation passed.

config/external-sources.lock.json

@@ -36,14 +36,23 @@
       "commit": "0d95a81d35a9f2d123a5e9430d1cfc43d55f1bb0",
       "syncedAt": "2026-07-06T02:08:42Z"
     },
+    {
+      "id": "taste-skill",
+      "pluginName": "taste-skill",
+      "repo": "https://github.com/Leonxlnx/taste-skill.git",
+      "ref": "main",
+      "adapter": "skill-collection",
+      "commit": "b17742737e796305d829b3ad39eda3add0d79060",
+      "syncedAt": "2026-07-07T02:43:19Z"
+    },
     {
       "id": "shadcn",
       "pluginName": "shadcn",
       "repo": "https://github.com/shadcn-ui/ui.git",
       "ref": "main",
       "adapter": "claude-skill",
-      "commit": "d8ace420baa5c8a1abccd75e52570f2a232f193d",
-      "syncedAt": "2026-07-06T16:00:00Z"
+      "commit": "68e1f171aa8c6ce2e38cb9a7d1463d6bcf357e91",
+      "syncedAt": "2026-07-07T16:00:00Z"
     },
     {
       "id": "frontend-slides",
@@ -78,8 +87,8 @@
       "repo": "https://github.com/hugohe3/ppt-master.git",
       "ref": "main",
       "adapter": "claude-skill",
-      "commit": "eb9243be673d0019dc1c7998262214a9a977a7d4",
-      "syncedAt": "2026-07-05T16:00:01Z"
+      "commit": "0b3f73e5f0868171eef82baef44be660888f6c71",
+      "syncedAt": "2026-07-07T16:00:00Z"
     },
     {
       "id": "next-skills",
@@ -87,17 +96,8 @@
       "repo": "https://github.com/vercel/next.js.git",
       "ref": "canary",
       "adapter": "skill-collection",
-      "commit": "6065bf6fcfc48484634dc3708c080a27c5684e5d",
-      "syncedAt": "2026-07-06T16:00:00Z"
-    },
-    {
-      "id": "taste-skill",
-      "pluginName": "taste-skill",
-      "repo": "https://github.com/Leonxlnx/taste-skill.git",
-      "ref": "main",
-      "adapter": "skill-collection",
-      "commit": "b17742737e796305d829b3ad39eda3add0d79060",
-      "syncedAt": "2026-07-07T02:43:19Z"
+      "commit": "8b5df172e4908b68f7ef88e8ad2b98070baf9ced",
+      "syncedAt": "2026-07-07T16:00:00Z"
     }
   ]
 }