chore(beads): close beads-399

chore: Bump version to 0.30.6

Updated all component versions:
- bd CLI: 0.30.5 → 0.30.6
- Plugin: 0.30.5 → 0.30.6
- MCP server: 0.30.5 → 0.30.6
- npm package: 0.30.5 → 0.30.6

Changes in this release:
- bd graph command shows dependency counts using subgraph formatting (bd-6v2)
- types.StatusPinned for persistent beads that survive cleanup

Release v0.30.3

Release v0.30.2

chore: bump version to v0.30.1

Update version across all packages:
- Go CLI (cmd/bd/version.go)
- Python MCP server (pyproject.toml, __init__.py)
- npm package (package.json)

Add comprehensive CHANGELOG entry with 14 features, 14 fixes,
security updates, and community contributor credits.

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

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

Release v0.30.0

Release v0.29.0

Release v0.28.0

Release v0.27.2: CRITICAL data corruption prevention fix

chore: bump plugin and beads-mcp versions to 0.27.0