Update pptx skill in marketplace

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/.agents/plugins/marketplace.json

@@ -28,18 +28,6 @@
       },
       "category": "设计"
     },
-    {
-      "name": "pptx",
-      "source": {
-        "source": "local",
-        "path": "./plugins/pptx"
-      },
-      "policy": {
-        "installation": "AVAILABLE",
-        "authentication": "ON_INSTALL"
-      },
-      "category": "文档处理"
-    },
     {
       "name": "xlsx",
       "source": {
@@ -291,6 +279,18 @@
         "authentication": "ON_INSTALL"
       },
       "category": "文档处理"
+    },
+    {
+      "name": "pptx",
+      "source": {
+        "source": "local",
+        "path": "./plugins/pptx"
+      },
+      "policy": {
+        "installation": "AVAILABLE",
+        "authentication": "ON_INSTALL"
+      },
+      "category": "文档处理"
     }
   ]
 }

plugins/codex/plugins/pptx/.codex-plugin/plugin.json

@@ -32,6 +32,8 @@
     "privacyPolicyURL": "https://git.playones.com/arechen/EapilSkillMarket",
     "termsOfServiceURL": "https://git.playones.com/arechen/EapilSkillMarket",
     "brandColor": "#2563EB",
-    "screenshots": []
+    "screenshots": [],
+    "composerIcon": "./assets/market-icon.svg",
+    "logo": "./assets/market-icon.svg"
   }
 }

plugins/codex/plugins/pptx/assets/market-icon.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="360" height="360" viewBox="0 0 24 24"><title>pptx</title><g fill="none"><path fill="url(#SVGdFie5cDw)" d="M8 6.25A2.25 2.25 0 0 1 10.25 4h7.5A2.25 2.25 0 0 1 20 6.25v8.5A2.25 2.25 0 0 1 17.75 17h-7.5A2.25 2.25 0 0 1 8 14.75z"/><path fill="url(#SVGXYfMve6h)" d="M8 6.25A2.25 2.25 0 0 1 10.25 4h7.5A2.25 2.25 0 0 1 20 6.25v8.5A2.25 2.25 0 0 1 17.75 17h-7.5A2.25 2.25 0 0 1 8 14.75z"/><path fill="url(#SVGCfFQgeqH)" d="M4 4.25A2.25 2.25 0 0 1 6.25 2h9a2.25 2.25 0 0 1 2.25 2.25v10.5A2.25 2.25 0 0 1 15.25 17h-9A2.25 2.25 0 0 1 4 14.75z"/><path fill="url(#SVGBFc5OckO)" d="M5.25 8A2.25 2.25 0 0 0 3 10.25v8.5A3.25 3.25 0 0 0 6.25 22h11.5A3.25 3.25 0 0 0 21 18.75v-1.5A2.25 2.25 0 0 0 18.75 15h-2.846a.75.75 0 0 1-.55-.24l-5.61-6.04A2.25 2.25 0 0 0 8.097 8z"/><defs><linearGradient id="SVGdFie5cDw" x1="21.8" x2="23.639" y1="19.5" y2="5.773" gradientUnits="userSpaceOnUse"><stop stop-color="#bb45ea"/><stop offset="1" stop-color="#9c6cfe"/></linearGradient><linearGradient id="SVGXYfMve6h" x1="20" x2="17" y1="8.5" y2="8.5" gradientUnits="userSpaceOnUse"><stop offset=".338" stop-color="#5750e2" stop-opacity="0"/><stop offset="1" stop-color="#5750e2"/></linearGradient><linearGradient id="SVGBFc5OckO" x1="6.857" x2="6.857" y1="8" y2="27.091" gradientUnits="userSpaceOnUse"><stop offset=".241" stop-color="#ffd638"/><stop offset=".637" stop-color="#fab500"/><stop offset=".985" stop-color="#ca6407"/></linearGradient><radialGradient id="SVGCfFQgeqH" cx="0" cy="0" r="1" gradientTransform="matrix(8.775 -11.5 18.53666 14.14428 8.05 14)" gradientUnits="userSpaceOnUse"><stop offset=".228" stop-color="#2764e7"/><stop offset=".685" stop-color="#5cd1ff"/><stop offset="1" stop-color="#6ce0ff"/></radialGradient></defs></g></svg>