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

This same-concept compact successor replaces only the preferred SGA3 current-progress PDF, its direct editable master, its grouped source/history ZIP, and three release controls. The other 61 files from version 10.5281/zenodo.21636902 are retained byte-identically. SGA1 remains the default preview. The preferred SGA3 working reader has 1,182 A4 pages. It contains complete current working bodies for the Editorial Notice, Introduction, Exposes I-XVIII, and XX; Expose XXI through local page 5 / Application 2.1.2; and the frozen Expose XXII local pages 1-10. Expose XVII now closes through Appendix III on authority local page 49. Expose XIX and Exposes XXIII-XXVI are explicit gaps. This is intentionally a readable preservation release while SGA3 remains unfinished. It is not a complete translation, critical edition, rights clearance, tagged accessibility edition, uniform component certification, or final diagram/reference-fidelity closure. A post-freeze high-zoom audit found five Expose-V diagram layout defects in figures007-011 involving bottom arrow-label side or placement; mathematical content was intact and corrected successors remain pending. The reader has 7,481 named destinations, 4,031 valid internal link annotations/actions, zero invalid or external URI actions, 63 font resources, and no Type3 fonts. Three XeLaTeX passes converged without fatal errors, undefined controls or references, duplicate destinations, missing inputs, missing characters, or rerun requests. An isolated source-archive rebuild matched all 1,182 decoded page streams, extracted text, geometry, destinations, links, and normalized font resources; 37 selected renders were pixel-exact. The grouped source/history ZIP has 1,080 exact safe members and includes the immediately preceding cumulative PDF, TeX, and README. Its CRC, exact-set, member hashes, privacy scan, extraction, and fresh three-pass rebuild all passed. Earlier Zenodo versions remain immutable history rather than loose duplicates on the current landing surface. Polo-Gille source PDFs control the French wording, formulas, numbering, notes, page order, and diagram appearance; they are not redistributed by this package. Floris's pre-existing GPU OCR was consulted read-only as a locator or drafting witness and was not regenerated. Jacob C. Reinhold's jcreinhold/sga English lineage at revision e7a259f3f8608ad3edf9bf6eead3fd504dd2d23e is credited comparison and drafting material, not source authority; its stated CC BY 4.0 applies only to that contribution. Rights in the underlying French works and scans remain with their holders. Machine-assisted contributors include OpenAI Codex / ChatGPT and Anthropic Claude under human direction.