fix(plugins): normalize author fields and versions in 4 plugin.json files

- executive-mentor: add url to author, add homepage + repository
- self-improving-agent: add url to author, version 1.0.0 → 2.1.2
- playwright-pro: fix author name (Reza → Alireza), replace email with url, version 1.0.0 → 2.1.2
- google-workspace-cli: add url to author

All plugin.json files now use consistent author object format.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

engineering-team/google-workspace-cli/.claude-plugin/plugin.json

@@ -3,7 +3,8 @@
   "version": "2.1.2",
   "description": "Google Workspace administration via the gws CLI. Install, authenticate, and automate Gmail, Drive, Sheets, Calendar, Docs, Chat, and Tasks. 5 Python tools, 3 reference guides, 43 built-in recipes, 10 persona bundles.",
   "author": {
-    "name": "Alireza Rezvani"
+    "name": "Alireza Rezvani",
+    "url": "https://alirezarezvani.com"
   },
   "repository": "https://github.com/alirezarezvani/claude-skills",
   "license": "MIT",