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

@@ -15,8 +15,8 @@
       "repo": "https://github.com/Yeachan-Heo/oh-my-codex.git",
       "ref": "main",
       "adapter": "codex-plugin",
-      "commit": "5d43a5bf6f008de17f9425bee4495c457c60b96a",
-      "syncedAt": "2026-07-10T16:00:00Z"
+      "commit": "fce27bfd6c17c7665a6f1505b6b8384cc2c8edd5",
+      "syncedAt": "2026-07-12T16:00:00Z"
     },
     {
       "id": "ui-ux-pro-max",
@@ -87,8 +87,8 @@
       "repo": "https://github.com/hugohe3/ppt-master.git",
       "ref": "main",
       "adapter": "claude-skill",
-      "commit": "dbf1e363abb4dba36f7c883ee7ba1495073394d0",
-      "syncedAt": "2026-07-11T15:59:59Z"
+      "commit": "8f76b6fcef5f24c8716894adeb6fe24c5a418bc3",
+      "syncedAt": "2026-07-12T16:00:00Z"
     },
     {
       "id": "next-skills",
@@ -96,8 +96,8 @@
       "repo": "https://github.com/vercel/next.js.git",
       "ref": "canary",
       "adapter": "skill-collection",
-      "commit": "1bd2fd585aac793ca2589e6f18f17a412fd11005",
-      "syncedAt": "2026-07-11T15:59:59Z"
+      "commit": "31541356c21bc389150b958379acb26aa7e97b22",
+      "syncedAt": "2026-07-12T16:00:00Z"
     }
   ]
 }