Implement configuration resolution#656

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ubaskota wants to merge 7 commits intodevelopfrom

config_resolution_main

Commits on Feb 19, 2026

Add config source interface and environment variable source for config resolution (#640)
ubaskota
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Commits on Feb 23, 2026

Add ConfigResolver with necessary tests (#641)
ubaskota
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Commits on Feb 28, 2026

Add a config property descriptor along with a custom resolver and validators (#642)
ubaskota
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Commits on Mar 5, 2026

Update the codegen files that generate config.py to support config resolution. (#646)
ubaskota
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Commits on Mar 13, 2026

Commits on Mar 20, 2026

Refactor and move config resolution codegen logic from generic layer to AWS layer (#659)
ubaskota
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