chore: bump version to 0.33.0

Ephemeral molecules release:
- bd mol spawn creates ephemeral issues by default
- Ephemeral issues never export to JSONL
- bd mol squash with --summary for agent summaries

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

.claude-plugin/marketplace.json

@@ -9,7 +9,7 @@
       "name": "beads",
       "source": "./",
       "description": "AI-supervised issue tracker for coding workflows",
-      "version": "0.32.1"
+      "version": "0.33.0"
     }
   ]
 }