CLOUDP-327089: Populate .status.version in MongoDBSearch

[anandsyncs]

Summary

Version Handling Improvements:

• Refactored ValidateSearchImageVersion to accept a version string instead of extracting it internally, and renamed the internal method to getMongotVersion for clarity. The helper now sets mdbSearch.Status.Version to the determined version.
• Updated the logic for extracting the image tag from a container image to use a new extractImageTag helper function, ensuring the version is parsed correctly from the image string.

Testing Updates:

• Modified the TestMongoDBSearchReconcile_Success test to use the new operator config and to assert that Status.Version is set to the expected value after reconciliation.

Proof of Work

Tests Pass

Checklist

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[fealebenpae]

Looks good to me!

Normally I would have expected us to modify the MongoDBSearch.UpdateStatus() method in mongodbsearch_types.go to set the version field on the status, but I recognize it would be very tricky to actually do that because we don't have the information to compute the implicit version there. I suggest just adding a comment in MongoDBSearchReconcileHelper.reconcile() where setting the version in the status subresource to explain we do it there because we need access to the OperatorSearchConfig struct to compute the version, and we can't access it from MongoDBSearch.UpdateStatus().

[anandsyncs]

Looks good to me!

Normally I would have expected us to modify the MongoDBSearch.UpdateStatus() method in mongodbsearch_types.go to set the version field on the status, but I recognize it would be very tricky to actually do that because we don't have the information to compute the implicit version there. I suggest just adding a comment in MongoDBSearchReconcileHelper.reconcile() where setting the version in the status subresource to explain we do it there because we need access to the OperatorSearchConfig struct to compute the version, and we can't access it from MongoDBSearch.UpdateStatus().

Thanks for the review, I tried to do it via MongoDBSearch.UpdateStatus() but it was "tricky" even with some refactoring.