app/eth2wrap: trim requestedIdxs from cache

[KaloyanTanev]

requestedIdxs was not trimmed previously, resulting in a memory leak.

category: bug
ticket: none

[Copilot]

Pull request overview

Fixes an unbounded growth issue in DutiesCache by ensuring requestedIdxs entries are trimmed alongside duties/metadata when cache epochs are pruned.

Changes:

• Delete requestedIdxs entries in all duties trim paths (before/after; proposer/attester/sync).
• Add internal tests that exercise Trim behavior across small, sequential, and large (1000 epochs) scenarios.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
app/eth2wrap/cache.go	Ensures requestedIdxs is deleted whenever duties/metadata entries are trimmed to prevent memory growth.
app/eth2wrap/cache_internal_test.go	Adds tests validating that Trim removes old epochs across all duties maps and does not trim below threshold.

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[codecov]

Codecov Report

❌ Patch coverage is 50.00000% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 56.53%. Comparing base (be67ac5) to head (20b3cd9).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
app/eth2wrap/cache.go	50.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4413      +/-   ##
==========================================
+ Coverage   56.42%   56.53%   +0.10%     
==========================================
  Files         244      244              
  Lines       32421    32427       +6     
==========================================
+ Hits        18294    18333      +39     
+ Misses      11779    11752      -27     
+ Partials     2348     2342       -6     

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[Copilot]

Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated no new comments.

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