Fix delivery workflow initialization

[sentry]

Fixes ANDROID-DY. The issue was that: Flask's checkout endpoint uses 'quantities' before definition, causing 500 error; Android unconditionally throws on any non-200 response.

• Removed a hardcoded exception that simulated a failure in delivery workflow initialization.
• The delivery workflow is now expected to initialize successfully.

This fix was generated by Seer in Sentry, triggered by prithvirajkumar.rajakumar@sentry.io. 👁️ Run ID: 12762023

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 0.00%. Comparing base (814e302) to head (7fc7126).

Additional details and impacted files

@@          Coverage Diff          @@
##            main    #207   +/-   ##
=====================================
  Coverage   0.00%   0.00%           
=====================================
  Files         16      16           
  Lines        864     858    -6     
  Branches      65      65           
=====================================
+ Misses       864     858    -6     

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