feat(endpoint): add a new endpoint for fetching stored delivery options

[FreekVR]

provides an Endpoint architecture following API guidelines intended for future expansion

fixes INT-1328

[codecov]

Codecov Report

❌ Patch coverage is 0% with 361 lines in your changes missing coverage. Please review.
✅ Project coverage is 90.02%. Comparing base (a8e0a5f) to head (4b64365).
⚠️ Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
...pp/Endpoint/Resource/DeliveryOptionsV1Resource.php	0.00%	119 Missing ⚠️
src/App/Endpoint/EndpointService.php	0.00%	63 Missing ⚠️
...pp/Endpoint/Handler/GetDeliveryOptionsEndpoint.php	0.00%	53 Missing ⚠️
src/App/Endpoint/Contract/AbstractV1Request.php	0.00%	30 Missing ⚠️
src/App/Endpoint/EndpointRegistry.php	0.00%	29 Missing ⚠️
src/App/Endpoint/Contract/AbstractEndpoint.php	0.00%	20 Missing ⚠️
...App/Endpoint/Contract/AbstractVersionedRequest.php	0.00%	18 Missing ⚠️
...p/Endpoint/Request/GetDeliveryOptionsV1Request.php	0.00%	11 Missing ⚠️
src/App/Endpoint/Resource/V1ErrorResource.php	0.00%	11 Missing ⚠️
...pp/Endpoint/Contract/AbstractVersionedResource.php	0.00%	7 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #417      +/-   ##
============================================
- Coverage     94.91%   90.02%   -4.90%     
- Complexity     2032     2134     +102     
============================================
  Files           359      369      +10     
  Lines          6644     7005     +361     
============================================
  Hits           6306     6306              
- Misses          338      699     +361     

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