chore: bump version to 0.33.1

Breaking changes:
- Ephemeral → Wisp rename (JSON field, CLI flag)

Fixes:
- Lint error in mail.go (nosec for mail delegate)

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

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

.claude-plugin/plugin.json

@@ -1,7 +1,7 @@
 {
   "name": "beads",
   "description": "AI-supervised issue tracker for coding workflows. Manage tasks, discover work, and maintain context with simple CLI commands.",
-  "version": "0.33.0",
+  "version": "0.33.1",
   "author": {
     "name": "Steve Yegge",
     "url": "https://github.com/steveyegge"