Fix pyright type errors and correct paceENSDF Q-value extraction

- nuclear_data.py: Extract Q-value from ground state branch state[7] instead of
  halflife_data (was reading half-life seconds as Q-value)
- nuclear_data.py: Use ground state branch for forbiddenness code, with fallback
- nuclear_data.py: Add None guards for beta_data and pairs
- spectrum.py: Pass Z=config.Z_daughter, A=config.A_number to RadiativeCorrection
- phase_space.py: Add __init__ debug logging (W0, transition_type, m_e, m_nu)
- phase_space.py: Add output range logging in __call__
- phase_space.py: Fix possibly unbound forbid_factor variable
- logging_utils.py: Fix broken get_git_short_hash indentation
- cli.py: Add explicit SpectrumConfig annotation to fix pyright type identity
- cw_extractor.py: Fix T_to_W ndarray→float conversions (6 locations)
- cw_extractor.py: Fix FermiFunction() calls — was passing Z as __call__ arg
- fitter.py: Add explicit dict type annotation for least_squares kwargs

beta_spectrum/cli.py

@@ -28,6 +28,7 @@ import sys
 from typing import Any, Dict
 
 from beta_spectrum.logging_utils import LoggingConfig, setup_logging
+from beta_spectrum.spectrum import SpectrumConfig
 
 
 def _build_parser() -> argparse.ArgumentParser:
@@ -210,6 +211,7 @@ def _run(args: argparse.Namespace) -> None:
     detector_kwargs = _parse_detector_args(args)
 
     source_type: str
+    config: SpectrumConfig
     if args.nuclide:
         logger.info("Source: paceENSDF nuclide=%s", args.nuclide)
         config = create_config_from_source(