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.

plugins/codex/plugins/eapil-gpt2-image/THIRD_PARTY_SOURCE.json

@@ -0,0 +1,9 @@
+{
+  "sourceId": "eapil-gpt2-image",
+  "repo": "https://git.playones.com/chenmingxuan/ManySkills.git",
+  "ref": "v1.0.0",
+  "commit": "e869eb169eeb5a7cd9e58c0e514fa2dbbf50987d",
+  "adapter": "codex-plugin",
+  "sourcePath": "plugins/eapil-gpt2-image",
+  "syncedAt": "2026-10-06T07:26:41Z"
+}