fix(fog): scope V58A3 command quirks to libdeye

[stackia]

Summary

Move the DYD-V58A3 Fog command workarounds into libdeye so integrations do not need product-specific logic.

The V58A3 now:

• preserves Power=1 in non-empty partial updates while powered on
• re-asserts Mode when a power-on update contains Power=1
• omits SetHumidity from auto-mode updates

These transformations preserve the behavior verified in #64 and stackia/ha-deye-dehumidifier#103 while limiting it to the V58A3. U20A3, U20Air, and generic Fog products retain their existing behavior. Input property dictionaries are copied before normalization.

Validation

• .venv/bin/pytest — 113 passed
• .venv/bin/mypy .
• .venv/bin/pre-commit run --all-files
• git diff --check

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.40%. Comparing base (61756cf) to head (652fbc4).
⚠️ Report is 1 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #65      +/-   ##
==========================================
+ Coverage   93.31%   93.40%   +0.08%     
==========================================
  Files           7        7              
  Lines         838      849      +11     
  Branches       85       88       +3     
==========================================
+ Hits          782      793      +11     
  Misses         25       25              
  Partials       31       31              

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