impl(auth): add access boundary credential decorator

[alvarowolfx]

Towards #4186

[codecov]

Codecov Report

❌ Patch coverage is 76.66667% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 95.04%. Comparing base (b192d3f) to head (905e686).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/auth/src/access_boundary.rs	76.66%	7 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4736      +/-   ##
==========================================
- Coverage   95.07%   95.04%   -0.04%     
==========================================
  Files         198      198              
  Lines        7601     7622      +21     
==========================================
+ Hits         7227     7244      +17     
- Misses        374      378       +4     

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[alvarowolfx]

PR #4346 is up to date with how the decorator is going to be used