Add /workflow, /skill-info, and /agent-info commands

- /workflow command to list and describe available workflows
  - Filter by category (health, deploy, incidents, sysadmin)
  - Show workflow steps and triggers
- /skill-info command for skill introspection
  - List scripts, triggers, and allowed tools
  - Show references and documentation
- /agent-info command with hierarchy visualization
  - Tree view of agent relationships
  - Model assignments (opus/sonnet/haiku) with visual indicators
  - Supervisor and subordinate information
- Updated shell completions with 19 aliases total
- Test suite now covers 27 tests

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

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

commands/agent-info.md

@@ -0,0 +1,36 @@
+---
+name: agent-info
+description: Show information about available agents
+aliases: [agent, agents]
+invokes: command:agent-info
+---
+
+# Agent Info Command
+
+Show information about available agents and their hierarchy.
+
+## Usage
+
+```
+/agent-info                 # List all agents
+/agent-info <name>          # Show agent details
+/agent-info --tree          # Show agent hierarchy
+```
+
+## Implementation
+
+Run the agent info script:
+
+```bash
+python3 ~/.claude/automation/agent-info.py [options] [name]
+```
+
+## Output Includes
+
+| Field | Description |
+|-------|-------------|
+| Name | Agent identifier |
+| Description | What the agent handles |
+| Model | Assigned model (opus/sonnet/haiku) |
+| Triggers | Keywords that route to this agent |
+| Supervisor | Parent agent in hierarchy |