feat: support configure tracking _app_start and _app_end events

[zhu-xiaowei]

Description

1. support configure tracking app start and app end events

General Checklist

• Added new tests to cover change, if needed
• Security oriented best practices and standards are followed (e.g. using input sanitization, principle of least privilege, etc)
• Documentation update for the change if required
• PR title conforms to conventional commit style
• If breaking change, documentation/changelog update with migration instructions

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (51d5188) 100.00% compared to head (e3be3d1) 100.00%.

Additional details and impacted files

@@            Coverage Diff            @@
##              main       #42   +/-   ##
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  Coverage   100.00%   100.00%           
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  Files           25        25           
  Lines         1080      1082    +2     
  Branches       207       209    +2     
=========================================
+ Hits          1080      1082    +2     

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