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

@@ -24,8 +24,8 @@
       "repo": "https://github.com/nextlevelbuilder/ui-ux-pro-max-skill.git",
       "ref": "main",
       "adapter": "claude-skill",
-      "commit": "a13b2a02fd58d8ad325fefd9d146f62708be8456",
-      "syncedAt": "2026-06-24T03:56:08Z"
+      "commit": "bdf1179bcf641cca49ee7a5f76df14c3015fd38c",
+      "syncedAt": "2026-06-24T15:59:59Z"
     },
     {
       "id": "shadcn",
@@ -33,8 +33,8 @@
       "repo": "https://github.com/shadcn-ui/ui.git",
       "ref": "main",
       "adapter": "claude-skill",
-      "commit": "b59f68ecc5216e39d3f492e79b9767388ccd43db",
-      "syncedAt": "2026-06-24T03:56:08Z"
+      "commit": "549852bffcad7718b92bf40ea44b94a4e627511a",
+      "syncedAt": "2026-06-24T15:59:59Z"
     },
     {
       "id": "frontend-slides",
@@ -69,8 +69,8 @@
       "repo": "https://github.com/hugohe3/ppt-master.git",
       "ref": "main",
       "adapter": "claude-skill",
-      "commit": "54ef7c733480ca44061fc76d6d29dcf2227ecd67",
-      "syncedAt": "2026-06-24T03:56:08Z"
+      "commit": "7647212fabf12d16c2e90525d0f3f6229ec058a3",
+      "syncedAt": "2026-06-24T15:59:59Z"
     },
     {
       "id": "next-skills",
@@ -78,8 +78,8 @@
       "repo": "https://github.com/vercel/next.js.git",
       "ref": "canary",
       "adapter": "skill-collection",
-      "commit": "16db9d05442fc1521c02e6690599aa89da0df0ec",
-      "syncedAt": "2026-06-24T03:48:19Z"
+      "commit": "72c26d1442602c9ab000354b7addb63841884a91",
+      "syncedAt": "2026-06-24T15:59:59Z"
     }
   ]
 }