chore(gates): route doc-sync through the run-gates scheduler

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.

docs/development.i18n.yaml

@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write
-development.md: 94eb4f03329b574862a1ac1de2f8c1d4db4f4a0a
-development.zh.md: b533aff43a66ff7cfc5dc61e5b9b224a01c51f12
+development.md: 1b8d94d281910277764be0e2693e54b537112e9a
+development.zh.md: 396252e5cd8350f1cf7f987a1e9a943ed3145286