build: added new debugging command dev to support demo debugging

[huangguang1999]

…demo debugging

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.26%. Comparing base (2724b3e) to head (ce75c9b).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #239   +/-   ##
=======================================
  Coverage   89.26%   89.26%           
=======================================
  Files         138      138           
  Lines        8070     8070           
  Branches     3316     3316           
=======================================
  Hits         7204     7204           
  Misses        843      843           
  Partials       23       23           

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