Update postgres 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.

.agents/plugins/marketplace.json

@@ -40,18 +40,6 @@
       },
       "category": "设计"
     },
-    {
-      "name": "postgres",
-      "source": {
-        "source": "local",
-        "path": "./plugins/codex/plugins/postgres"
-      },
-      "policy": {
-        "installation": "AVAILABLE",
-        "authentication": "ON_INSTALL"
-      },
-      "category": "数据分析"
-    },
     {
       "name": "literature-review",
       "source": {
@@ -291,6 +279,18 @@
         "authentication": "ON_INSTALL"
       },
       "category": "文档处理"
+    },
+    {
+      "name": "postgres",
+      "source": {
+        "source": "local",
+        "path": "./plugins/codex/plugins/postgres"
+      },
+      "policy": {
+        "installation": "AVAILABLE",
+        "authentication": "ON_INSTALL"
+      },
+      "category": "数据分析"
     }
   ]
 }

plugins/codex/.agents/plugins/marketplace.json

@@ -40,18 +40,6 @@
       },
       "category": "设计"
     },
-    {
-      "name": "postgres",
-      "source": {
-        "source": "local",
-        "path": "./plugins/postgres"
-      },
-      "policy": {
-        "installation": "AVAILABLE",
-        "authentication": "ON_INSTALL"
-      },
-      "category": "数据分析"
-    },
     {
       "name": "literature-review",
       "source": {
@@ -291,6 +279,18 @@
         "authentication": "ON_INSTALL"
       },
       "category": "文档处理"
+    },
+    {
+      "name": "postgres",
+      "source": {
+        "source": "local",
+        "path": "./plugins/postgres"
+      },
+      "policy": {
+        "installation": "AVAILABLE",
+        "authentication": "ON_INSTALL"
+      },
+      "category": "数据分析"
     }
   ]
 }

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

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="360" height="360" viewBox="0 0 48 48"><title>postgres</title><g fill="none"><path fill="url(#SVGYughCdDy)" d="M8 12c1.206 1.173 2.677 2.049 4.01 2.659c3.262 1.492 7.505 2.317 11.99 2.317s8.728-.825 11.99-2.317c1.333-.61 2.804-1.486 4.01-2.659v24.25h-.007c-.139 2.527-2.373 4.438-5.043 5.66C32.083 43.222 28.21 44 24 44s-8.083-.779-10.95-2.09c-2.67-1.222-4.904-3.133-5.043-5.66H8z"/><path fill="url(#SVGVyjGhbns)" fill-opacity=".7" d="M8 12c1.206 1.173 2.677 2.049 4.01 2.659c3.262 1.492 7.505 2.317 11.99 2.317s8.728-.825 11.99-2.317c1.333-.61 2.804-1.486 4.01-2.659v24.25h-.007c-.139 2.527-2.373 4.438-5.043 5.66C32.083 43.222 28.21 44 24 44s-8.083-.779-10.95-2.09c-2.67-1.222-4.904-3.133-5.043-5.66H8z"/><path fill="url(#SVGLGJD5c4l)" d="M13.05 6.09C15.917 4.778 19.79 4 24 4s8.083.778 10.95 2.09C37.707 7.352 40 9.35 40 12s-2.293 4.648-5.05 5.91C32.083 19.22 28.21 20 24 20s-8.083-.779-10.95-2.09C10.293 16.648 8 14.65 8 12s2.293-4.648 5.05-5.91"/><defs><linearGradient id="SVGYughCdDy" x1="15.555" x2="32.87" y1="4.791" y2="41.153" gradientUnits="userSpaceOnUse"><stop stop-color="#29c3ff"/><stop offset="1" stop-color="#367af2"/></linearGradient><linearGradient id="SVGVyjGhbns" x1="28.952" x2="35.294" y1="15.93" y2="47.442" gradientUnits="userSpaceOnUse"><stop offset=".533" stop-color="#ff6ce8" stop-opacity="0"/><stop offset="1" stop-color="#ff6ce8"/></linearGradient><linearGradient id="SVGLGJD5c4l" x1="52" x2="33.509" y1="28" y2="-5.657" gradientUnits="userSpaceOnUse"><stop stop-color="#58aafe"/><stop offset="1" stop-color="#6ce0ff"/></linearGradient></defs></g></svg>