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/logging_utils.py

@@ -137,9 +137,9 @@ def get_git_short_hash(length: int = 7) -> str:
     str
         Short git hash, or "unknown" if not in a git repo.
     """
-    try:
-        import subprocess
+    import subprocess
 
+    try:
         result = subprocess.run(
             ["git", "rev-parse", f"--short={length}", "HEAD"],
             capture_output=True,