Add /export and /mcp-status commands

- /export command to export session data as Markdown or JSON
  - Export for sharing with other Claude instances
  - Include session details, topics, summary, and memory items
- /mcp-status command to check MCP integration health
  - Gmail venv and credentials status
  - Calendar API dependencies
  - Delegation helpers presence
  - MCP server configuration
- Updated shell completions with 15 aliases total
- Test suite now covers 23 tests

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

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

commands/README.md

@@ -17,6 +17,8 @@ Slash commands for quick actions. User-invoked (type `/command` to trigger).
 | `/search` | `/find`, `/lookup` | Search memory, history, config |
 | `/log` | `/logs`, `/logview` | View and analyze logs |
 | `/debug` | `/diag`, `/diagnose` | Debug and troubleshoot config |
+| `/export` | `/session-export`, `/share` | Export session for sharing |
+| `/mcp-status` | `/mcp`, `/integrations` | Check MCP integrations |
 | `/maintain` | `/maintenance`, `/admin` | Configuration maintenance |
 | `/programmer` | | Code development tasks |
 | `/gcal` | `/calendar`, `/cal` | Google Calendar access |