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

@@ -6,8 +6,8 @@
       "repo": "https://github.com/anthropics/skills.git",
       "ref": "main",
       "adapter": "claude-skill",
-      "commit": "683bc88e56f3e09ba94f7055977f3d3aa499f202",
-      "syncedAt": "2026-10-06T07:26:41Z"
+      "commit": "9d630808e4add0a7146de4af9384155d5dee350a",
+      "syncedAt": "2026-10-09T10:26:29Z"
     },
     {
       "id": "pdf",
@@ -15,8 +15,8 @@
       "repo": "https://github.com/anthropics/skills.git",
       "ref": "main",
       "adapter": "claude-skill",
-      "commit": "683bc88e56f3e09ba94f7055977f3d3aa499f202",
-      "syncedAt": "2026-10-06T07:26:41Z"
+      "commit": "9d630808e4add0a7146de4af9384155d5dee350a",
+      "syncedAt": "2026-10-09T10:26:29Z"
     },
     {
       "id": "pptx",
@@ -24,8 +24,8 @@
       "repo": "https://github.com/anthropics/skills.git",
       "ref": "main",
       "adapter": "claude-skill",
-      "commit": "683bc88e56f3e09ba94f7055977f3d3aa499f202",
-      "syncedAt": "2026-10-06T07:26:41Z"
+      "commit": "9d630808e4add0a7146de4af9384155d5dee350a",
+      "syncedAt": "2026-10-09T10:26:29Z"
     },
     {
       "id": "xlsx",
@@ -33,8 +33,8 @@
       "repo": "https://github.com/anthropics/skills.git",
       "ref": "main",
       "adapter": "claude-skill",
-      "commit": "683bc88e56f3e09ba94f7055977f3d3aa499f202",
-      "syncedAt": "2026-10-06T07:26:41Z"
+      "commit": "9d630808e4add0a7146de4af9384155d5dee350a",
+      "syncedAt": "2026-10-09T10:26:29Z"
     },
     {
       "id": "find-skills",
@@ -42,8 +42,8 @@
       "repo": "https://github.com/vercel-labs/skills.git",
       "ref": "main",
       "adapter": "claude-skill",
-      "commit": "05bf93879366fa21c5a4df7482a96adf13beabd2",
-      "syncedAt": "2026-10-09T02:04:00Z"
+      "commit": "e878c4502674f84094dc27b5ad94ddaf64f22551",
+      "syncedAt": "2026-10-09T10:26:29Z"
     },
     {
       "id": "generate-agents-md",
@@ -105,8 +105,8 @@
       "repo": "https://github.com/nextlevelbuilder/ui-ux-pro-max-skill.git",
       "ref": "main",
       "adapter": "claude-skill",
-      "commit": "1a2c459b35f26116fd165b0a0f30597f252749ff",
-      "syncedAt": "2026-10-08T15:59:59Z"
+      "commit": "50d8a7de0900119855614541f15a1a616691eb33",
+      "syncedAt": "2026-10-09T10:26:29Z"
     },
     {
       "id": "caveman",
@@ -132,8 +132,8 @@
       "repo": "https://github.com/shadcn-ui/ui.git",
       "ref": "main",
       "adapter": "claude-skill",
-      "commit": "6ea090075cd537d3b792c6c1a625e2448b6ede26",
-      "syncedAt": "2026-10-09T02:04:00Z"
+      "commit": "c003e96852fa9534aee40b2cb85a96d8bd38732d",
+      "syncedAt": "2026-10-09T10:26:29Z"
     },
     {
       "id": "frontend-slides",
@@ -220,10 +220,10 @@
       "id": "artemis-automation",
       "pluginName": "artemis-automation",
       "repo": "https://git.playones.com/chenmingxuan/Artemis-Eapil.git",
-      "ref": "v1.3.2",
+      "ref": "v1.4.0",
       "adapter": "claude-skill",
-      "commit": "f826bdf3b070ee5dd0c293167d6a86288ad0591e",
-      "syncedAt": "2026-10-08T15:59:59Z"
+      "commit": "4d6560dbd47cff63467b82373a023f1a954a9f62",
+      "syncedAt": "2026-10-09T10:26:29Z"
     },
     {
       "id": "embedded-app-pc-debug",
@@ -247,10 +247,10 @@
       "id": "firmware-lowlevel-development",
       "pluginName": "firmware-lowlevel-development",
       "repo": "https://git.playones.com/tangfahong/firmware-lowlevel-development.git",
-      "ref": "v1.0.0",
+      "ref": "v1.0.1",
       "adapter": "skill-collection",
-      "commit": "bcea35a91eb8cdd59de90ee79a8ffa0d80037668",
-      "syncedAt": "2026-09-15T09:16:34Z"
+      "commit": "ea4ff92835aa19f52dbb34df4aab47cb3d418f83",
+      "syncedAt": "2026-10-09T10:26:29Z"
     },
     {
       "id": "next-skills",
@@ -258,8 +258,8 @@
       "repo": "https://github.com/vercel/next.js.git",
       "ref": "canary",
       "adapter": "skill-collection",
-      "commit": "6469906e7909c824f22a165ce858f7f42c978bdd",
-      "syncedAt": "2026-10-09T02:04:00Z"
+      "commit": "76bed42c1b10c623dcfc63d2f6a80940bf79e157",
+      "syncedAt": "2026-10-09T10:26:29Z"
     },
     {
       "id": "shuorenhua",