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//! # Tara
//!
//! **Tara** (Sanskrit: तारा — star) — stellar astrophysics engine for star
//! classification, evolution, nucleosynthesis, and spectral analysis.
/// Physical and astronomical constants (IAU 2015, CODATA 2018).
/// Cross-crate bridges — primitive-value conversions from other AGNOS science crates.
/// Error types for the Tara engine.
/// Integration APIs for downstream consumers (soorat rendering).
/// Core star representation and spectral classes.
/// Hertzsprung-Russell diagram classification and stellar taxonomy.
/// Stellar evolution — main sequence, red giant, white dwarf, supernova tracks.
/// Spectral line analysis — absorption, emission, Doppler shift, broadening.
/// Stellar nucleosynthesis — fusion chains, element production, energy release.
/// Stellar atmosphere models — opacity, radiative transfer, limb darkening.
/// Luminosity, magnitude, and distance calculations.
/// Analytic stellar evolution fitting formulae (Tout et al. 1996, Hurley et al. 2000).
/// Optional logging initialization (requires `logging` feature).