- Delete monolithic registry.ts (−1185 lines)
- Add tools/definitions/ with 12 individual tool files + index.ts,
each using AgentTool interface and TypeBox schemas
- Add tools/utils/ with shared helpers (format.ts, schemas.ts, time-params.ts)
- Rewrite tools/index.ts to provide getAllTools() factory
- Clean up tools/types.ts, keep only ToolContext and OwnerInfo
- Use i18n keys for tool descriptions, preserve Chinese as comments
