GRSC Paper56-62: Stable Algebraic Interface: A Formal-Numerical Research Package

A formal-numerical research package for the Paper56-62 stable algebraic-interface group in the Gauss-Riemann Spectral Calculus programme. The package contains 10 papers in Markdown, TeX, and PDF formats, Lean boundary modules, seven finite audit tables, an explicit shared-source dependency contract, release-readiness records, and documentation. Upstream source producers remain in the shared GRSC dependency repository rather than being duplicated in this child package. Zenodo's workingpaper type is used as the closest available record type for this integrated paper-code-evidence package.