Implements a new 'bd count' command that provides efficient issue counting
with filtering and grouping capabilities.
Features:
- Basic count: Returns total count of issues matching filters
- All filtering options from 'bd list' (status, priority, type, assignee, labels, dates, etc.)
- Grouping via --by-* flags: status, priority, type, assignee, label
- JSON output support for both simple and grouped counts
- Both daemon and direct mode support
Implementation:
- Added OpCount operation and CountArgs to RPC protocol
- Added Count() method to RPC client
- Implemented handleCount() server-side handler with optimized bulk label fetching
- Created cmd/bd/count.go with full CLI implementation
Performance optimization:
- Pre-fetches all labels in a single query when using --by-label to avoid N+1 queries
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
