2026-09-14 — "all four editors" → five

One sentence in docs/{en,fr}/explanation/architecture.md, because Turbo Golo now exists. Uncommitted, on main at v0.5.0. Nothing else was read or changed here; commit it with the next change or on its own.

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# 2026-09-14 — "all four editors" → five

One sentence in `docs/{en,fr}/explanation/architecture.md`, because Turbo Golo now exists. Uncommitted, on `main` at `v0.5.0`. Nothing else was read or changed here; commit it with the next change or on its own.