ci: add GitHub Actions workflow; fix CHANGELOG date#1

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YASoftwareDev merged 6 commits intomainfrom

revert/direct-main-pushes

Mar 30, 2026

Commits on Mar 27, 2026

Revert "chore: update submodule URL after tts-service-api → tts-api rename"
NLPSoftwareDemo
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Commits on Mar 29, 2026

feat: re-apply PyPI rename tts-service-api → tts-api (restore from erroneous revert)
NLPSoftwareDemo
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