Allow empty Superpowers hooks manifest

Publish the completed third-party source refresh after Superpowers 6.1.1 changed its Codex manifest to use an empty no-op hooks object instead of a hooks file path.

Constraint: Current Codex CLI installs superpowers@eapil-skill-market with hooks: {}, while the marketplace validator still rejected empty inline hooks objects.
Rejected: Restore the old hooks directory by hand | Upstream no longer declares those Codex hook files, and hand-restoring generated content would drift from source.
Confidence: high
Scope-risk: moderate
Directive: Empty hooks objects are placeholders; allow them but do not count them as the plugin's only effective component.
Tested: /Users/eapil/git/keyinfo/.venv/bin/python3 scripts/validate_marketplace.py; rg public-secret scan; git diff --check; Codex temp CODEX_HOME marketplace add/list/add superpowers@eapil-skill-market.
Not-tested: Interactive Superpowers skill invocation inside a live Codex thread.

.agents/plugins/marketplace.json

@@ -196,18 +196,6 @@
       },
       "category": "多媒体与生成"
     },
-    {
-      "name": "superpowers",
-      "source": {
-        "source": "local",
-        "path": "./plugins/codex/plugins/superpowers"
-      },
-      "policy": {
-        "installation": "AVAILABLE",
-        "authentication": "ON_INSTALL"
-      },
-      "category": "开发工具"
-    },
     {
       "name": "frontend-slides",
       "source": {
@@ -256,6 +244,30 @@
       },
       "category": "知识库与检索"
     },
+    {
+      "name": "superpowers",
+      "source": {
+        "source": "local",
+        "path": "./plugins/codex/plugins/superpowers"
+      },
+      "policy": {
+        "installation": "AVAILABLE",
+        "authentication": "ON_INSTALL"
+      },
+      "category": "开发工具"
+    },
+    {
+      "name": "shadcn",
+      "source": {
+        "source": "local",
+        "path": "./plugins/codex/plugins/shadcn"
+      },
+      "policy": {
+        "installation": "AVAILABLE",
+        "authentication": "ON_INSTALL"
+      },
+      "category": "开发工具"
+    },
     {
       "name": "oh-my-codex",
       "source": {
@@ -280,18 +292,6 @@
       },
       "category": "设计"
     },
-    {
-      "name": "shadcn",
-      "source": {
-        "source": "local",
-        "path": "./plugins/codex/plugins/shadcn"
-      },
-      "policy": {
-        "installation": "AVAILABLE",
-        "authentication": "ON_INSTALL"
-      },
-      "category": "开发工具"
-    },
     {
       "name": "ppt-master",
       "source": {