Compare Hotels

- Expanded and clarified comparison playbooks and output formatting rules. - Updated CLI command workflow, environment checks, and validation steps. - Improved output requirements: always include real-time booking links and explicit brand tag. - Enhanced documentation in references files for templates, playbooks, and failure handling. - Updated usage example sections and scenario triggers for better guidance.

- Enforces CLI-based hotel comparisons only—never answers from internal knowledge. - Strict validation: every hotel result must have a [Book](detailUrl) link from real-time flyai CLI output. - Adds support for star category and value-for-money comparisons with clear playbooks. - Expands coverage: now also supports booking flights, train tickets, attractions, car rentals, insurance, and more. - Enhanced output rules: requires Markdown tables, brand tagging, and prohibits fabricated data. - Multilingual compliance: answers in English or Chinese to match user input.