Fix init warning tests and bump package version to 1.5.0

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This updates the follow-up requested in the review thread: the spectrafit init tests now contain the package lifecycle warning instead of leaking it at import time, and the package version is advanced to 1.5.0 across the canonical version surfaces.

• Warning-safe init tests

  • spectrafit/test/test_init.py no longer imports spectrafit outside warnings.catch_warnings(...) in tests that exercise import-time warnings.
  • The version test now reloads the package under a FutureWarning ignore filter and reads module.__version__, keeping the assertion focused on version parity.

• Version bump

  • Updated package metadata in pyproject.toml
  • Updated runtime version in spectrafit/__init__.py
  • Existing version assertions continue to validate the new release value through __version__

• Representative change

  with warnings.catch_warnings():
      warnings.simplefilter("ignore", FutureWarning)
      module = reload_spectrafit()
  
  assert module.__version__ == pkg_version("spectrafit")

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[semanticdiff-com]

Review changes with  

Changed Files

File	Status
pyproject.toml	Unsupported file format
spectrafit/__init__.py	0% smaller
spectrafit/test/test_init.py	0% smaller

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[stale]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.