refactor: shed avoidable casts, follow-up to bitcoin#25611

[knst]

Issue being fixed or feature implemented

Small follow-up for bitcoin#25611 (merged via #6775)

What was done?

Shed avoidable casts in evo/mnhftx, llmq/debug

How Has This Been Tested?

See CI

Breaking Changes

N/A

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added or updated relevant unit/integration/functional/e2e tests
• I have made corresponding changes to the documentation
• I have assigned this pull request to a milestone

[github-actions]

✅ No Merge Conflicts Detected

This PR currently has no conflicts with other open PRs.

[coderabbitai]

Walkthrough

The changes update the JSON serialization logic in two source files. In both src/evo/mnhftx.h and src/llmq/debug.cpp, explicit casts to int are removed when serializing certain fields into JSON objects. Specifically, the versionBit field in the MNHFTx class and the quorumHeight and member index fields in the LLMQ debug code are now inserted into JSON objects using their native types rather than being cast to int. No other logic, control flow, or public entity declarations are modified.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

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📥 Commits

Reviewing files that changed from the base of the PR and between 9636d6a and 26c1c34.

📒 Files selected for processing (2)

• src/evo/mnhftx.h (1 hunks)
• src/llmq/debug.cpp (2 hunks)

✅ Files skipped from review due to trivial changes (2)

• src/evo/mnhftx.h
• src/llmq/debug.cpp

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[kwvg]

utACK 9636d6a

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Test failures unrelated

[PastaPastaPasta]

CI fails; likely needs rebase

[UdjinM6]

utACK 26c1c34

[kwvg]

utACK 26c1c34