git:20260829.945ae53 to git:20260921.f6e9185

1 added, 1 removed. Audit A to A.

# Visitor-guide diagrams
- Read `VISUAL_LANGUAGE.md` before changing a diagram seed or its renderer. Preserve the semantic inventory in the seed, regenerate the committed guide and SVGs, inspect the relational-ledger density case, and run the freshness check.
+ Read `VISUAL_LANGUAGE.md` before changing a diagram seed or its renderer. Preserve the semantic inventory in the seed, regenerate the committed guide and SVGs, inspect the ambiguity-closure and representative-operation diagrams, and run the freshness check.