v0.9.0

Added

• vSmartMOM.jl column radiative transfer integration (Aerosol3D.vsmartmom):
  • VSmartMOMResult dataclass with NetCDF I/O and Julia→Python dimension reordering
  • VSmartMOMRunner — validation, Julia detection, subprocess orchestration
  • serialize_input() / compute_tau_profile() — writes vSmartMOM-compatible NetCDF temp input
  • Julia entrypoint script (run_rt.jl): reads NetCDF → builds model → runs rt_run() → writes result
  • Optional --julia-project support (defaults to system Julia environment)
• examples/vsmartmom_rt_demo.py — synthetic bulk optics → profile → RT → result pipeline
• vSmartMOM API reference, user guide (architecture, math, error table, limitations), and 6-step tutorial
• vSmartMOM listed in features and examples README

Fixed

• Julia↔Python NetCDF dimension ordering mismatches in bridge (serialize.py, result.py, run_rt.jl)
• beta_0 = 1.0 normalization in bulk optics with correct vSmartMOM convention (beta_l = (2l+1)g_l)
• Dataclass docstrings (Attributes → Args) for clean Sphinx builds

Tests

• 20 vSmartMOM unit tests covering serialization, tau profile, runner validation, and result I/O