docs: canonicalize docs paths and align zh navigation (#11428)

* docs(navigation): canonicalize paths and align zh nav

* chore(docs): remove stray .DS_Store

* docs(scripts): add non-mint docs link audit

* docs(nav): fix zh source paths and preserve legacy redirects (#11428) (thanks @sebslight)

* chore(docs): satisfy lint for docs link audit script (#11428) (thanks @sebslight)

docs/concepts/architecture.md

@@ -97,7 +97,7 @@ Client                    Gateway
 - Gateway auth (`gateway.auth.*`) still applies to **all** connections, local or
   remote.
 
-Details: [Gateway protocol](/gateway/protocol), [Pairing](/start/pairing),
+Details: [Gateway protocol](/gateway/protocol), [Pairing](/channels/pairing),
 [Security](/gateway/security).
 
 ## Protocol typing and codegen