feat: add Claude code plugin config (#1)

Author: twishabansal

.claude-plugin/marketplace.json

@@ -0,0 +1,16 @@
+{
+  "name": "dataproc-marketplace",
+  "owner": {
+    "name": "Google LLC",
+    "email": "data-cloud-ai-integrations@google.com"
+  },
+  "metadata": {
+    "description": "Agent skills for Dataproc to manage clusters and jobs."
+  },
+  "plugins": [
+    {
+      "name": "dataproc",
+      "source": "./"
+    }
+  ]
+}

.claude-plugin/plugin.json

@@ -0,0 +1,27 @@
+{
+  "name": "dataproc",
+  "version": "0.1.0",
+  "description": "Manage Dataproc clusters and jobs.",
+  "author": {
+    "name": "Google LLC",
+    "email": "data-cloud-ai-integrations@google.com"
+  },
+  "homepage": "https://cloud.google.com/dataproc",
+  "license": "Apache-2.0",
+  "repository": "https://github.com/gemini-cli-extensions/dataproc",
+  "skills": "./skills/",
+  "userConfig": {
+    "dataproc_project": {
+      "title": "Project ID",
+      "description": "ID of the Google Cloud project",
+      "type": "string",
+      "sensitive": false
+    },
+    "dataproc_region": {
+      "title": "Region",
+      "description": "Region of the Dataproc resources",
+      "type": "string",
+      "sensitive": false
+    }
+  }
+}