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

This same-concept compact successor replaces the SGA 3 Expose V Loop-1 working surface with the independently audited Loop-2 native-diagram reader, editable master, rights-blocked visual-witness metadata, and grouped source/evidence ZIP. Current readers and primary editable TeX remain directly visible; recursive source, machine-readable ledgers, QA, bounded checkpoints, and predecessor material remain grouped. SGA 3 Expose V Loop 2: the 51-page bounded working reader replaces all 66 temporary source-PDF-derived Loop-1 diagram PNGs with native TeX diagram constructions. The PDF has 350 named destinations, 411 valid internal GoTo annotations, 273 reference targets, 333 edges, and zero image XObjects. An isolated three-pass rebuild reproduced its extracted text and all 51 rendered pages exactly. Source-page pixels are not redistributed because their rights remain unclear. Public CSV and JSONL metadata preserve 66 source-witness parent hashes, locators, crop identities and dimensions where recorded, linked target units, native replacements, and QA dispositions. Missing DPI, rotation, or bounding-box data are explicitly marked not_recorded. The grouped ZIP contains 229 privacy-clean members and no source pixels. SGA 3 remains incomplete: Exposes VI-XXVI are untranslated. The prior Expose V Loop-1 freeze3 surface remains immutable in predecessor version 10.5281/zenodo.21510120. SGA 2 R8 remains the default preview. SGA 4 proper r7, SGA 5 R9, and the complete layered terminal SGA 6 reader remain unchanged. SGA 1 remains a complete-scope working reader without exhaustive convention-v2 certification. SGA 3 uses current Polo-Gille PDFs as controlling witnesses; OCR is locator material only. Jacob C. Reinhold's jcreinhold/sga snapshot e7a259f3f8608ad3edf9bf6eead3fd504dd2d23e is credited comparison and drafting lineage, not authority. Reinhold states that his translation contribution is CC BY 4.0; that statement does not license the underlying French work, source-derived visual witnesses, or unrelated contributions. No new license grant is asserted; rights remain with their respective holders. Machine-assisted contributors include OpenAI Codex / ChatGPT and Anthropic Claude under human direction. These are modern working editions and translations, not critical editions, mathematical certifications, independent human peer review, blanket rights determinations, or accessibility certifications. All predecessor versions remain immutable. This successor updates only existing SGA concept 10.5281/zenodo.20410947.