feat: Add Codex plugin config (#114)

Co-authored-by: Averi Kitsch <akitsch@google.com>

Author: twishabansal

.codex-plugin/plugin.json

@@ -0,0 +1,28 @@
+{
+  "name": "bigquery-data-analytics",
+  "version": "0.1.7",
+  "description": "Connect, query, and generate data insights for BigQuery datasets and data.",
+  "author": {
+    "name": "Google LLC",
+    "email": "data-cloud-ai-integrations@google.com"
+  },
+  "homepage": "https://cloud.google.com/bigquery",
+  "repository": "https://github.com/gemini-cli-extensions/bigquery-data-analytics",
+  "license": "Apache-2.0",
+  "keywords": [
+    "bigquery",
+    "data-analytics",
+    "database"
+  ],
+  "skills": "./skills/",
+  "interface": {
+    "displayName": "BigQuery Data Analytics",
+    "shortDescription": "Connect, query, and generate data insights for BigQuery.",
+    "developerName": "Google LLC",
+    "category": "Database",
+    "capabilities": [
+      "Read",
+      "Write"
+    ]
+  }
+}