Add global Redfish query flags

[spyroot]

Summary

• add top-level Redfish GET query flags for select, filter, expand, top, and only
• validate requested query parameters against the target vendor capability profile
• attach the validated query to command dispatch so base_query appends it without changing startup probes or URLs that already include a query string
• document the root-level flag placement in the command reference

Tests

• pytest -q tests/test_query.py
• pytest -q
• ruff check redfish_ctl/redfish_main.py redfish_ctl/idrac_manager.py redfish_ctl/redfish_manager.py tests/test_query.py
• python -B -m redfish_ctl.redfish_main --help