Fix create table ignoring solution parameter: send MSCRM.SolutionUniqueName header

[mstarodu]

Problem
create_table with solution= sent SolutionUniqueName as a URL query parameter on the CreateEntities action. Dataverse ignores unknown query options, so the request succeeded but the table always landed in the Default solution.

Fix
Send the documented MSCRM.SolutionUniqueName request header instead (same mechanism relationship creation already uses) in sync, async, and batch code paths. Updated the 3 unit tests that asserted the query-param behavior.

Ref: https://learn.microsoft.com/en-us/power-apps/developer/data-platform/webapi/create-update-entity-definitions-using-web-api

[Copilot]

Pull request overview

This PR fixes create_table(..., solution=...) incorrectly passing SolutionUniqueName as an unsupported URL query option on the CreateEntities action (which Dataverse ignores), by sending the documented MSCRM.SolutionUniqueName request header instead. This aligns table creation behavior with existing relationship-creation behavior and ensures new tables land in the intended solution.

Changes:

• Update sync and async _create_entity to send MSCRM.SolutionUniqueName via request headers instead of URL query params.
• Update _build_create_entity (batch/raw-request path) to set MSCRM.SolutionUniqueName on the _RawRequest.headers field rather than appending to the URL.
• Update unit tests (sync + async) to assert header behavior and ensure the URL no longer contains SolutionUniqueName.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/PowerPlatform/Dataverse/data/_odata.py	Sends MSCRM.SolutionUniqueName as a request header in the sync CreateEntities call path.
src/PowerPlatform/Dataverse/aio/data/_async_odata.py	Sends MSCRM.SolutionUniqueName as a request header in the async CreateEntities call path.
src/PowerPlatform/Dataverse/data/_odata_base.py	Updates the raw/batch request builder for CreateEntities to carry the solution as a header (not a URL query param).
tests/unit/data/test_odata_internal.py	Updates sync unit tests to validate header injection and ensure the URL does not include the solution query option.
tests/unit/aio/data/test_async_odata_internal.py	Updates async unit tests to validate header injection for solution-scoped entity creation.

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[mstarodu]

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