Added
- **Doctor command** — `azdo-daily doctor` validates configuration and tests API connectivity
- Checks config file exists and required fields present
- Tests Azure DevOps and Anthropic API connectivity
- Provides detailed error messages for troubleshooting
- **Multi-type support** — Now supports all Azure DevOps work item types (Epic, Feature, User Story, Bug, Issue)
- Maintains parent-child hierarchy regardless of type
- Fetches all child work items, not just Tasks
- Supports full Azure DevOps work item structure