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

@@ -114,8 +114,8 @@
       "repo": "https://github.com/JuliusBrussee/caveman.git",
       "ref": "main",
       "adapter": "codex-plugin",
-      "commit": "d262ab3882952a59312ff3537cd86d894523c5ab",
-      "syncedAt": "2026-10-14T02:09:15Z"
+      "commit": "81958ad82f2e2da4417778f81f8a3c838d81b798",
+      "syncedAt": "2026-10-17T16:00:00Z"
     },
     {
       "id": "taste-skill",
@@ -132,8 +132,8 @@
       "repo": "https://github.com/shadcn-ui/ui.git",
       "ref": "main",
       "adapter": "claude-skill",
-      "commit": "c2477f311c19982ef6e246085438e6cfec3e35ea",
-      "syncedAt": "2026-10-15T16:00:00Z"
+      "commit": "d2fba50ee5b9113008b5bb908563527b7efd2f27",
+      "syncedAt": "2026-10-17T16:00:00Z"
     },
     {
       "id": "frontend-slides",
@@ -168,8 +168,8 @@
       "repo": "https://github.com/hugohe3/ppt-master.git",
       "ref": "main",
       "adapter": "claude-skill",
-      "commit": "8070d3df1f6f54b5fb60a9ae66e79c664f050212",
-      "syncedAt": "2026-10-14T16:00:00Z"
+      "commit": "b113d23720260c411ee47b2b05a73615f954deeb",
+      "syncedAt": "2026-10-17T16:00:00Z"
     },
     {
       "id": "grill-me",
@@ -258,8 +258,8 @@
       "repo": "https://github.com/vercel/next.js.git",
       "ref": "canary",
       "adapter": "skill-collection",
-      "commit": "fb20d9af8b89e2507466702d6844f9e984012fb8",
-      "syncedAt": "2026-10-15T16:00:00Z"
+      "commit": "e2e7393c1f8449759aa1ae502b64fd7e946fbf37",
+      "syncedAt": "2026-10-17T16:00:00Z"
     },
     {
       "id": "shuorenhua",
@@ -267,8 +267,8 @@
       "repo": "https://github.com/MrGeDiao/shuorenhua.git",
       "ref": "main",
       "adapter": "claude-skill",
-      "commit": "e7c2b8670bd3e1988bfec199e861cebd87fc5e9c",
-      "syncedAt": "2026-10-01T16:00:00Z"
+      "commit": "6c4b9353b87185c26e684c4525be1af47f82fee9",
+      "syncedAt": "2026-10-17T16:00:00Z"
     }
   ]
 }