Summary

• Avoid == or != for possible float comparison

• Fix uncertainty as int for EnergyAdjustment cannot generate repr:

  from pymatgen.entries.computed_entries import EnergyAdjustment
  
  print(EnergyAdjustment(10, uncertainty=0))

  Gives:

  Traceback (most recent call last):
    File "/Users/yang/developer/pymatgen/test_json.py", line 25, in <module>
      print(EnergyAdjustment(10, uncertainty=0))
    File "/Users/yang/developer/pymatgen/src/pymatgen/entries/computed_entries.py", line 108, in __repr__
      return f"{type(self).__name__}({name=}, {value=:.3}, {uncertainty=:.3}, {description=}, {generated_by=})"
                                                           ^^^^^^^^^^^^^^^^^
  ValueError: Precision not allowed in integer format specifier