perf: optimise staking endblocker

[randy-cro]

Description

Details in crypto-org-chain/cosmos-sdk#1725

Closes: #XXX

Description

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For contributor use:

• Targeted PR against correct branch (see CONTRIBUTING.md)
• Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
• Code follows the module structure standards.
• Wrote unit and integration tests
• Updated relevant documentation (docs/) or specification (x/<module>/spec/)
• Added relevant godoc comments.
• Added a relevant changelog entry to the Unreleased section in CHANGELOG.md
• Re-reviewed Files changed in the Github PR explorer

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For admin use:

• Added appropriate labels to PR (ex. WIP, R4R, docs, etc)
• Reviewers assigned
• Squashed all commits, uses message "Merge pull request #XYZ: [title]" (coding standards)

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	golang/​github.com/​randy-cro/​cosmos-sdk@​v0.0.0-20250925140221-1d53ef4da959
	golang/​github.com/​crypto-org-chain/​cosmos-sdk/​store@​v0.0.0-20241015015202-783e224f9517 ⏵ v0.0.0-20241217090828-cfbca9fe8254
	golang/​cosmossdk.io/​math@​v1.3.0 ⏵ v1.4.0	+1	+15

View full report

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 46.11%. Comparing base (6103138) to head (3e1b035).

Additional details and impacted files

@@                Coverage Diff                @@
##           release/v1.4.x-2     #743   +/-   ##
=================================================
  Coverage             46.10%   46.11%           
=================================================
  Files                   181      181           
  Lines                 18227    18228    +1     
=================================================
+ Hits                   8404     8405    +1     
  Misses                 9097     9097           
  Partials                726      726           

Files with missing lines	Coverage Δ
app/app.go	77.85% <100.00%> (+0.02%)	⬆️

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