SGA 1-6: Compact English Working Readers, Reference-Linked Editions, and Audit Archives

This same-concept successor preserves 59 files from version 10.5281/zenodo.21677179 byte-identically. It replaces the direct SGA2, SGA3, and SGA6 English reader PDFs and master TeX files, plus three release controls. SGA1 remains the default preview. This second pass removes 34 additional reader-facing project source-adjudication, production-status, and model/process notes missed by the first cleanup. The all-six direct English-reader text scan is clean. SGA1, SGA4, and SGA5 remain byte-identical. Historical editor-authored notes belonging to the source editions remain part of the scholarly text. The annotated source/evidence archives and all immutable predecessor versions remain available as provenance rather than being placed in the reading surface. These are scholarly working translations and TeX editions, not critical editions, blanket rights clearances, mathematical certifications, peer review, final diagram-fidelity certification, or tagged-PDF accessibility remediation. No new license grant is asserted.