pnpm run doc-sync was a serial &&-chain of 24 pnpm run subcommands; the
24 script bodies finish in ~34s while the chain takes ~3min, all wrapper
overhead. Add a doc-sync mode to scripts/run-gates.ts expanding to
docSyncLeafGates() (concurrency capped at 4 like pre-push: several doc
gates each build a full ts.Program) and point the package script at it,
making the leaf list the single source of truth for the member set.
Consolidating the two lists surfaced drift: verify-cordis-api joined the
package.json chain with the runtime API catalog but was never added to
docSyncLeafGates, so CI and pre-push never gated that catalog's
freshness. Add the missing leaf.
