Address review feedback for numeric parse edge cases in parse_util

[Copilot]

Describe your changes
This updates the PR to resolve all comments from the linked review thread by tightening parse_int error handling for float-fallback edge cases and aligning parse_float typing with its supported inputs.

• parse_int robustness

  • Keep float-string fallback (int(float(val))) for values like "3.5".
  • Return None (instead of raising) for overflow/non-finite float conversions (e.g. "inf", "1e309"), so caller defaults still apply.

• parse_float typing alignment

  • Update the function signature to reflect real accepted inputs (bool | float | int | str) to match runtime behavior and avoid misleading type hints.

• Tests alignment

  • Ensure parse-dict expectations cover the corrected bool and float-like string conversion behavior.

def _parse_int(val: str) -> int | None:
    try:
        return int(val)
    except ValueError:
        try:
            return int(float(val))
        except (ValueError, OverflowError):
            return None

def parse_float(val: bool | float | int | str) -> float | None:
    if isinstance(val, (bool, int)):
        return float(val)
    return _parse_with(val, type_util.is_float, _parse_float)

Related issue
Addresses the review comments in PR #578 review thread (pullrequestreview-4629196338).

Checklist before requesting a review

• I have performed a self-review of my code.
• I have added tests for the proposed changes.
• I have run the tests and there are not errors.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.33%. Comparing base (f99b35a) to head (de6ec1b).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #587   +/-   ##
=======================================
  Coverage   98.33%   98.33%           
=======================================
  Files          64       64           
  Lines        2399     2399           
=======================================
  Hits         2359     2359           
  Misses         40       40           

Flag	Coverage Δ
unittests	98.33% <0.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.