chore: Rename to compound-marketplace, update GitHub org

- Renamed every-marketplace to compound-marketplace
- Updated all EveryInc references to kieranklaassen
- Updated owner info in marketplace.json

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

plugins/compound-engineering/.claude-plugin/plugin.json

@@ -8,7 +8,7 @@
     "url": "https://github.com/kieranklaassen"
   },
   "homepage": "https://every.to/source-code/my-ai-had-already-fixed-the-code-before-i-saw-it",
-  "repository": "https://github.com/EveryInc/every-marketplace",
+  "repository": "https://github.com/kieranklaassen/compound-marketplace",
   "license": "MIT",
   "keywords": [
     "ai-powered",