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

@@ -105,8 +105,8 @@
       "repo": "https://github.com/hugohe3/ppt-master.git",
       "ref": "main",
       "adapter": "claude-skill",
-      "commit": "7879bbc811f86ed9e43df0053169d885cff942c7",
-      "syncedAt": "2026-09-15T06:47:43Z"
+      "commit": "b44cdfac5d88b912b92bdc87b2f87cd9afd91a48",
+      "syncedAt": "2026-09-15T07:53:22Z"
     },
     {
       "id": "grill-me",
@@ -139,10 +139,10 @@
       "id": "hardware-development",
       "pluginName": "hardware-development",
       "repo": "https://git.playones.com/xufeng/hardware-development.git",
-      "ref": "v1.0.0",
+      "ref": "v1.1.0",
       "adapter": "claude-skill",
-      "commit": "bb7491d3f3a188389c22995316ae0a257177a077",
-      "syncedAt": "2026-09-15T06:47:43Z"
+      "commit": "057d5e82410c789c0c8b16412c41c119d13cb192",
+      "syncedAt": "2026-09-15T07:53:22Z"
     },
     {
       "id": "next-skills",