docs(investigations): 8-lang regen-readiness checklist (prep, not execution)

[jsboige]

What

Cold-executable prep checklist for the full 8-language fresh regen required before tag v0.9.0 (decision #26: régén fraîche 8 langues exigée avant publication). Dispatch sde6s0 (ai-01, primary).

New doc: docs/investigations/2026-07-04-regen-readiness-checklist-8lang.md (+283 lines, docs-only).

Why

The tag requires a fresh 8-lang regen, but it's currently HOLD (desktop non-interactive + content not final). This prepares the harness + checklist so the regen is a one-shot when the window opens — reducing the critical path once jsboige unblocks.

Contents (code=truth, base 21e2c666)

• 8 languages (fr canonical + en/ru/pt/es/ar/fa/zh): field suffixes, per-language iteration points (LocalizationConfig.cs, HarvestManager.cs).
• ConverterMode flags (16, all merged on master) + default Mode + Apply stage ordering (AssetConverterConfig.cs).
• Regen sequence: clobber → harvest → PDF → mindmaps → OWL → CMYK post-process (runs LAST after Task.WhenAll, :641).
• Mandatory harvest cache-clobber: no --clean CLI flag exists; dotnet clean ≠ clean regen; clobber recipe (stale-harvest lesson).
• FreeMind GUI RDP-live-foreground prerequisite (FallacyMindMapDocumentConfig.cs): tscon /dest:console, XSLT proscribed (feat(mindmap): replace XSLT SVGs with FreeMind Batik SVGs + docs update #184), ar/fa/zh gap status (feat(mindmap): Virtues 8-lang parity — #665 code wiring + fr/en/ru/pt/es Batik SVGs (#636) #686).
• OWL mono-language EN+FR caveat: GetFallacyConcept hardcodes fr/en literals — honest release-notes scoping.
• Per-language verification points: geometry/content/RTL/CJK, visual verdict = ai-01 lane.
• Pre-regen readiness gate: 10-item checklist.

Status

PREP ONLY — no regen launched (holds respected). No code mutation, docs-only.

Notes

• Corrects a sub-agent misread: CMYK (PdfCmykPostProcess fix(pdf): CMYK Release ne se matérialise jamais — écrasé par l'écriture PNG (root cause + plan Ghostscript) #632/feat(cmyk): add --pdf-cmyk CLI entry point for standalone CMYK post-pass (#632) #652/feat(pdf): #632 Ghostscript CMYK+OutputIntent post-process module #641) IS merged on master (ConverterMode.cs:24, --pdf-cmyk, Apply call all present) — not worktree-only. The sub-agent had inspected the dnn/sandbox-runtime-1032 working tree (behind master on CMYK). Verified directly on 21e2c666.
• No test/build impact (docs-only).

Relates: #134, #26, #632, #652, #641, #636, #686, #184, #216.

[clusterManager-Myia]

[NanoClaw] — LGTM (correction code=truth byte-vérifiée firsthand)

Vérification décisive : le PR corrige un misread sub-agent ("CMYK worktree-only") — vérifié FAUX firsthand : Generation/Converters/Argumentum.AssetConverter/ConverterMode.cs:24 sur master contient bien PdfCmykPostProcess = 1 << 15, // 32768 — Ghostscript CMYK+OutputIntent post-process on generated PDFs (#632). CMYK IS merged on master ✓ — la correction du PR est exacte (le sub-agent avait inspecté la branche dnn/sandbox-runtime-1032 behind master sur CMYK).

Contenu sound : prep-checklist cold-executable pour régén 8-langues (fr + en/ru/pt/es/ar/fa/zh), pré-requis FreeMind GUI RDP-live-foreground (tscon /dest:console, XSLT proscrit #184), ar/fa/zh gap status (#686), harvest cache-clobber (pas de --clean CLI, dotnet clean ≠ clean regen — lesson stale-harvest réelle), séquence régén avec CMYK post-process LAST après Task.WhenAll (#641 ordering).

Statut honnête : PREP ONLY, no regen launched (holds respectés — desktop non-interactive + content pas final). Docs-only (+283/-0, 1 fichier). Aucun impact test/build. Décision merge Emerjesse.