patchExpressRouterUse

patchExpressRouterUse(): void

Patches express.Router().use so nested mounts (e.g. router.use("/gpt/histories", ...)) record __openApiMountPath the same way app.use does. Without this, nested modelRouter OpenAPI paths are omitted from /openapi.json.

Express 5's Router puts use a few prototypes up from the instance, so we walk the chain until we find the own use descriptor.

Returns

void