The combo sub-check of check:known-symbols asserts every canonical routing
strategy has a real dispatch branch. It scanned a hardcoded file list and
matched only `strategy === "..."`, so the prelude extraction tripped it twice:
[combo] 2 estratégia(s) canônica(s) sem branch de despacho em combo.ts:
✗ fusion
✗ pipeline
Both branches are still wired — they just moved to combo/dispatchPrelude.ts and
took the early-return guard form `if (strategy !== "fusion") return null;` that
extracting a branch into a `tryXDispatch()` leaf naturally produces.
Two changes, both extending existing precedent (the list already carries the
Block J leaves for the same reason):
- register combo/dispatchPrelude.ts in comboDispatchFiles
- widen the extractor to `strategy [!=]== "..."` so the inverted guard counts
Loose `==`/`!=` stay rejected, and no `handledNotCanonical` fallout: the gate
now reports 20 canonical strategies, all 20 via despacho.
Co-authored-by: diegosouzapw <diegosouzapw@users.noreply.github.com>
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