Export to OCI layout

[jonesbusy]

Description

Export to OCI layout

Testing done

CI

Submitter checklist

• I have read and understood the CONTRIBUTING guide
• I have run mvn license:update-file-header, mvn spotless:apply, pre-commit run -a, mvn clean install before opening the PR

[codecov]

Codecov Report

Attention: Patch coverage is 88.05970% with 8 lines in your changes missing coverage. Please review.

Project coverage is 83.67%. Comparing base (784ba03) to head (c350d93).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
src/main/java/land/oras/Registry.java	82.97%	5 Missing and 3 partials ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #175      +/-   ##
============================================
+ Coverage     83.16%   83.67%   +0.51%     
- Complexity      308      327      +19     
============================================
  Files            27       29       +2     
  Lines          1093     1158      +65     
  Branches        105      110       +5     
============================================
+ Hits            909      969      +60     
- Misses          129      132       +3     
- Partials         55       57       +2     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.