fix: debug log is truncated if it already exists

[phm07]

This fixes #763. It also writes the used command to the debug logs for easier debugging.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 13 lines in your changes missing coverage. Please review.

Project coverage is 59.54%. Comparing base (8c6fec9) to head (19e847a).

Files	Patch %	Lines
internal/state/state.go	0.00%	13 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #793      +/-   ##
==========================================
- Coverage   59.62%   59.54%   -0.08%     
==========================================
  Files         210      210              
  Lines        7641     7651      +10     
==========================================
  Hits         4556     4556              
- Misses       2443     2453      +10     
  Partials      642      642              

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[phm07]

Waiting for #798 to be merged before this PR can be rebased & merged