Add CLI Dashboard (Inspired by OpenSpec)

[maxritter]

Summary

Add a CLI for AgentOS similar to OpenSpec's CLI to provide quick terminal access to project status, specs, and workflow progress:

Motivation

OpenSpec's CLI (openspec view, openspec list) demonstrates the value of terminal-based visibility into spec-driven workflows. AgentOS would benefit from similar commands to enable quick status checks without IDE context switching.

Proposed Commands

agent-os view - Interactive dashboard showing:

• Active/completed specs and workflows
• Task progress summary
• Recent changes

agent-os list - List specs, workflows, or tasks with filters

agent-os list --workflows
agent-os list --status active

agent-os show <item> - Display details for specific spec/workflow/task

agent-os status - Quick overview of active work and blockers

agent-os validate [item] - Validate specs against standards

agent-os search <query> - Search through specs and workflows

Benefits

• Faster navigation and reduced context switching
• Better team visibility into project state
• CI/CD integration for validation
• Complements CLI-first tools like Claude Code