- Implement pushHistory mutation to support pushing telemetry data to Zabbix trapper items.
- Add VERBOSITY and MCP_LOG_* environment variables for controllable request/response logging in both API and MCP server.
- Enhance ZabbixRESTDataSource with better session handling and error logging.
- Update ZabbixHistory datasource to support history push operations.
- Expand documentation with new cookbook recipes and MCP integration guides.
- Add integration tests for history pushing (src/test/history_push*).
- Reorganize documentation, moving technical product info PDF to docs/use-cases/.
- Update GraphQL generated types and VCR templates.
