chore: register zod plugin in marketplace and release-please

- .claude-plugin/marketplace.json: add zod entry pointing to ./plugins/zod
- release-please-config.json: add plugins/zod with simple release-type and
  extra-files jsonpath $.version for plugin.json bumps
- README.md: append Zod section after Portless mirroring existing entries

Author: amondnet

.claude-plugin/marketplace.json

@@ -600,6 +600,14 @@
       "keywords": ["portless", "localhost", "dev-server", "proxy"],
       "tags": ["tooling", "dev-server"],
       "source": "./plugins/portless"
+    },
+    {
+      "name": "zod",
+      "description": "TypeScript-first schema validation with static type inference - version-aware skill for Zod v3 and v4",
+      "category": "development",
+      "keywords": ["zod", "validation", "schema", "typescript"],
+      "tags": ["validation", "typescript"],
+      "source": "./plugins/zod"
     }
   ]
 }

README.md

@@ -302,6 +302,11 @@ Replace port numbers with stable, named local URLs. For humans and agents.
 
 **Install:** `/plugin install portless@pleaseai` | **Source:** [plugins/portless](https://github.com/pleaseai/claude-code-plugins/tree/main/plugins/portless)
 
+#### Zod
+TypeScript-first schema validation with static type inference — version-aware skill covering Zod v3 and v4 differences (entry points, error formatting, refinements).
+
+**Install:** `/plugin install zod@pleaseai` | **Source:** [plugins/zod](https://github.com/pleaseai/claude-code-plugins/tree/main/plugins/zod)
+
 ## Quick Start
 
 The fastest way to get started — install the marketplace and let the plugin recommender auto-detect what you need:

release-please-config.json

@@ -493,6 +493,17 @@
           "jsonpath": "$.version"
         }
       ]
+    },
+    "plugins/zod": {
+      "release-type": "simple",
+      "component": "zod",
+      "extra-files": [
+        {
+          "type": "json",
+          "path": ".claude-plugin/plugin.json",
+          "jsonpath": "$.version"
+        }
+      ]
     }
   },
   "release-type": "node",