Address feedback post- requiring RouteParams in Route

[valentinewallace]

Address feedback post-merge of #4693

[ldk-reviews-bot]

I've assigned @wpaulino as a reviewer!
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Once they submit their review, I'll check if a second reviewer would be helpful.

[ldk-claude-review-bot]

No issues found.

The change correctly sets max_total_routing_fee_msat to Some(path.fee_msat()) for probes — fee_msat() returns only routing fees (excluding the final hop value), matching the intent. The fuzz changes safely remove .clone() since route_params is moved into the Route and not used afterward.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.94%. Comparing base (7962098) to head (47f58f3).
⚠️ Report is 3228 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4754      +/-   ##
==========================================
+ Coverage   84.56%   86.94%   +2.37%     
==========================================
  Files         137      161      +24     
  Lines       77617   111650   +34033     
  Branches    77617   111650   +34033     
==========================================
+ Hits        65636    97071   +31435     
- Misses       9939    12072    +2133     
- Partials     2042     2507     +465     

Flag	Coverage Δ
fuzzing-fake-hashes	8.43% <0.00%> (?)
fuzzing-real-hashes	32.42% <0.00%> (?)
tests	86.27% <100.00%> (?)

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