chore: initialize AI agent context and instructions

[akurinnoy]

Assisted-by: Gemini

What does this PR do?

This PR establishes the foundational context and guidance for various AI agents operating within the repository, including Gemini, Cursor, and Claude Code:

• included AGENTS.mdto serve as a comprehensive, agent-agnostic instruction manual for contributing to this project;
• created AI agent-specific configuration and rule files (.claude/*, .cursor/*, .gemini/*);

Is it tested? How?

To test whether an AI agent reads and follows to the project-wide and the compliance rules, instruct it to do the following:

Create a new file and add a function that takes in numbers and returns their sum.

When the work is finished, you need to verify that:

• The generated function is prefixed with the comment // Generated by {your-agent-name}. This indicates that the compliance rules were read and applied.
• The file contains the license header. This indicates that the project-wide rules were read and applied.

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: akurinnoy, rohanKanojia, tolusha
Once this PR has been reviewed and has the lgtm label, please assign dkwon17 for approval. For more information see the Code Review Process.

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[akurinnoy]

/retest

[akurinnoy]

/retest

[openshift-ci]

New changes are detected. LGTM label has been removed.

[openshift-ci]

@akurinnoy: 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
ci/prow/v14-devworkspace-operator-e2e	c17a5e6	link	true	/test v14-devworkspace-operator-e2e

Full PR test history. Your PR dashboard.

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