Parent: #255

Scope

Add canonical typed flags for clients.update ErirAttributes.Organization.

CLI Contract

• Use canonical typed CLI flags only.
• Do not add public --json input or blob payload forwarding.
• Keep README/help examples single-line.
• Validate only documented local constraints unless this child issue explicitly says otherwise.

WSDL Audit Routing

clients.update rows under ErirAttributes.Organization.

Acceptance Criteria

• Focused dry-run tests prove the exact Yandex Direct payload shape.
• tests/test_wsdl_parity_gate.py routes the matching optional audit rows to this issue or marks them supported.
• tests/WSDL_OPTIONAL_FIELD_AUDIT.md is updated consistently.
• Relevant CLI/help/docs tests pass.

Out Of Scope

• Live API write tests.
• Unrelated subtype blocks from parent clients update: complete optional nested WSDL parity #255.
• Broad all-optional-fields parity outside this child issue.