Added 6 interactive prompts for spec-driven development workflows:
- create-spec: Interactive spec document creation
- create-steering-doc: AI agent guidance documents
- manage-tasks: Task management with full lifecycle support
- request-approval: Formal approval workflow initiation
- spec-status: Comprehensive project status overviews
- workflow-guide: Interactive workflow guidance

Enables terminal-first workflows via MCP clients like Gemini CLI and Claude Code.