Feat/account region protection

[a-hilaly]

Adds protection against attempting to manage AWS resources that exist in a different region or account than the controller is configured to use. This prevents accidental resource hijacking and provides clear error messages.

• Add regionDrifted() and accountDrifted() helper functions
• Check for drift before creating resource manager in Reconcile
• Return terminal errors when drift is detected
• Add comprehensive tests for both region and account drift scenarios

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[michaelhtm]

/test unit-test

[a-hilaly]

/retest

[a-hilaly]

/retest

[a-hilaly]

/retest

[michaelhtm]

/test ecr-controller-test

[michaelhtm]

/retest

[michaelhtm]

/lgtm

[michaelhtm]

/hold

[michaelhtm]

/lgtm /unhold

[ack-prow[bot]]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: a-hilaly, michaelhtm

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[michaelhtm]

/test s3-controller-test

[michaelhtm]

/test ec2-controller-test

[ack-prow[bot]]

@a-hilaly: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
verify-attribution	c271c639b047ae65ee3c2fbca29eaf4e7e0f40fa	link	false	/test verify-attribution

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[michaelhtm]

/test sagemaker-controller-test