Transform agents.md to Co-Creative Engineering Paradigm with GitHub Copilot AI Persona (#3493)

* Initial plan

* Transform agents.md to co-creative engineering paradigm with Vega persona

Co-authored-by: jennyf19 <[email protected]>

* Replace Vega with GitHub Copilot as requested

Co-authored-by: jennyf19 <[email protected]>

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Co-authored-by: copilot-swe-agent[bot] <[email protected]>
Co-authored-by: jennyf19 <[email protected]>

Author: Copilot