[ContainerInstance] Fix TypeSpec validation: correct property name in source example file

[MicroJamesLim]

ARM (Control Plane) API Specification Update Pull Request

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Additional information

This PR fixes the failing TypeSpec Validation CI job for the ContainerInstance 2026-07-01 stable API version.

Root cause: The TypeSpec source example file examples/2026-07-01/ContainerGroupsCreateOrUpdateManagedIdentityAzureFileshare.json used the property name userManagedIdentityClientId, while the TypeSpec model (models.tsp) and the generated swagger definition (containerInstance.json) define the property as userAssignedIdentityClientId. When tsp compile ran in CI, it copied the source example value (userManagedIdentityClientId) into the generated output file, producing a diff against the committed file and triggering the "files have been changed after tsp compile" validation failure.

Fix: Updated the source example file to use userAssignedIdentityClientId (matching the TypeSpec model property name and the swagger definition), so tsp compile now generates output consistent with the committed file — no diff, no failure.

Files changed:

• specification/containerinstance/resource-manager/Microsoft.ContainerInstance/ContainerInstance/examples/2026-07-01/ContainerGroupsCreateOrUpdateManagedIdentityAzureFileshare.json — replaced userManagedIdentityClientId with userAssignedIdentityClientId (3 occurrences)

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[github-actions]

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[github-actions]

API Change Check

APIView identified API level changes in this PR and created the following API reviews

Language	API Review for Package
Swagger	Microsoft.ContainerInstance-ContainerInstance
Go	sdk/resourcemanager/containerinstance/armcontainerinstance
Python	azure-mgmt-containerinstance
JavaScript	@azure/arm-containerinstance
C#	Azure.ResourceManager.ContainerInstance
Java	com.azure.resourcemanager:azure-resourcemanager-containerinstance
TypeSpec	Microsoft.ContainerInstance

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Comment generated by After APIView workflow run.

[sandipsh]

please address lintdiff, model validation, prettier and typespec validation errors.