feat: add OpenClaw adapter type

Introduce openclaw adapter package with server execution, CLI stream
formatting, and UI config fields. Register the adapter across CLI,
server, and UI registries. Add adapter label in all relevant pages.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

server/package.json

@@ -13,6 +13,7 @@
   "dependencies": {
     "@paperclip/adapter-claude-local": "workspace:*",
     "@paperclip/adapter-codex-local": "workspace:*",
+    "@paperclip/adapter-openclaw": "workspace:*",
     "@paperclip/adapter-utils": "workspace:*",
     "@paperclip/db": "workspace:*",
     "@paperclip/shared": "workspace:*",