Feat/ai skills (#1632)

* implement ai-skills command line switch

* fix: address review comments, remove breaking change for existing projects, add tests

* fix: review comments

* fix: review comments

* fix: review comments

* fix: review comments

* fix: review comments, add test cases for all the agents

* fix: review comments

* fix: review comments

* chore: trigger CI

* chore: trigger CodeQL

* ci: add CodeQL workflow for code scanning

* ci: add actions language to CodeQL workflow, disable default setup

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Co-authored-by: dhilipkumars <s.dhilipkumar@gmail.com>