[Bug]: Unassigning TS ID from group fails when payload is too large

[rma-bryson]

Describe the bug

Unassigning a TS ID currently works via a PATCH and requires a full payload. If there are say 1000+ ts ids for a group, and only a single ts id is unassigned this causes an error as reported in https://jira.hecdev.net/browse/CWMSVUE-779

Expected behavior

TS ID should be unassigned without an error.

To Reproduce

See https://jira.hecdev.net/browse/CWMSVUE-779

Unassigning a TS ID from a group with a large dataset produces an error caused by payload being too large.

Priority

Medium

Logs/Incident Identifier

No response

CURL Commands

CDA Version

2026.05.12-f

Additional context

No response

[rma-bryson]

the CWMS_TS_PACKAGE supports unassignment, and so it should be easy enough to call directly. That being said, I'm not sure the best place for that operation to live. Should that be its own endpoint? Or should query params for timeseries id and a flag for unassignFromGroup be added to the delete method?