chore(release): v0.47.2

- Dolt backend (experimental)
- bd show --children flag
- NixOS support improvements
- Fix redirect + sync-branch incompatibility
- Fix doctor project-level settings detection
- Fix contributor routing

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

.claude-plugin/marketplace.json

@@ -9,7 +9,7 @@
       "name": "beads",
       "source": "./claude-plugin",
       "description": "AI-supervised issue tracker for coding workflows",
-      "version": "0.47.1"
+      "version": "0.47.2"
     }
   ]
 }