chore: Bump version to 0.30.5

Updated all component versions:
- bd CLI: 0.30.4 → 0.30.5
- Plugin: 0.30.4 → 0.30.5
- MCP server: 0.30.4 → 0.30.5
- npm package: 0.30.4 → 0.30.5

Changes in 0.30.5:
- Removed YAML simple template system (--from-template flag)
- Removed embedded templates (bug.yaml, epic.yaml, feature.yaml)
- Templates are now purely Beads-based

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

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

cmd/bd/templates/hooks/pre-commit

@@ -1,5 +1,5 @@
 #!/bin/sh
-# bd-hooks-version: 0.30.4
+# bd-hooks-version: 0.30.5
 #
 # bd (beads) pre-commit hook
 #