[Maikol]

Ports the RewardsManager tests for same-block signal and allocation updates and for inverted reward snapshots to Foundry on the issuance test base, and deletes the TypeScript tests they replace. The snapshot tests write RewardsManager storage directly, so a first test checks the storage layout they rely on. Stacked on #1384.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.29%. Comparing base (b75038d) to head (168bc53).

Additional details and impacted files

@@                                Coverage Diff                                 @@
##           test/contracts-removal-t5d-rewards-eligibility    #1385      +/-   ##
==================================================================================
- Coverage                                           82.33%   82.29%   -0.04%     
==================================================================================
  Files                                                  81       81              
  Lines                                                5326     5326              
  Branches                                             1132     1132              
==================================================================================
- Hits                                                 4385     4383       -2     
- Misses                                                919      921       +2     
  Partials                                               22       22              

Flag	Coverage Δ
unittests	82.29% <ø> (-0.04%)	⬇️

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