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>

automation/test-scripts.sh

@@ -85,6 +85,27 @@ else
     fail "session-export.py syntax error"
 fi
 
+# Test 10: workflow-info.py
+if python3 -m py_compile "${AUTOMATION_DIR}/workflow-info.py" 2>/dev/null; then
+    pass "workflow-info.py syntax valid"
+else
+    fail "workflow-info.py syntax error"
+fi
+
+# Test 11: skill-info.py
+if python3 -m py_compile "${AUTOMATION_DIR}/skill-info.py" 2>/dev/null; then
+    pass "skill-info.py syntax valid"
+else
+    fail "skill-info.py syntax error"
+fi
+
+# Test 12: agent-info.py
+if python3 -m py_compile "${AUTOMATION_DIR}/agent-info.py" 2>/dev/null; then
+    pass "agent-info.py syntax valid"
+else
+    fail "agent-info.py syntax error"
+fi
+
 echo ""
 echo "=== Skill Scripts ==="