interSAE 0.1.0

• Introduces design-aware survey objects and validated census-margin objects.
• Adds coherent reconstruction of latent multiway population tables from overlapping census margins, including structural-zero support.
• Adds augmented model-assisted estimates for intersectional domains.
• Adds rank diagnostics and optional linear-programming identification bounds.
• Adds multiplier and supplied-replicate-weight bootstrap inference.
• Adds benchmarking, margin diagnostics, simulation, and reproducible examples.