[qiweiii]

Summary

• Organize accumulation runtime protocol code under a dedicated feature folder.
• Separate protocol, execution, domain types, account changes, and invocation types.
• Preserve accumulation behavior and existing function visibility.

Verification

• swift test --package-path Blockchain --filter AccumulationCoreTests
• swift test --package-path Blockchain --filter AccumulationMergeTests
• swiftformat --lint Blockchain/Sources/Blockchain/RuntimeProtocols/Accumulation
• swiftlint lint --config .swiftlint.yml --strict

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 67.70%. Comparing base (34e8d09) to head (21450e3).

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #401      +/-   ##
==========================================
+ Coverage   67.68%   67.70%   +0.02%     
==========================================
  Files         474      476       +2     
  Lines       47160    47161       +1     
  Branches     1474     1474              
==========================================
+ Hits        31921    31932      +11     
+ Misses      14588    14578      -10     
  Partials      651      651              

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