test: use references in test packages

feature(angular/common): generate meaningful generics for HttpRequests instead of unknown

fix(client-nuxt): forward asyncDataOptions to useFetch/useLazyFetch

feat: bring json-schema-ref-parser in-house

asyncDataOptions (e.g. { immediate: false }) was destructured out of
request options but only forwarded to useAsyncData/useLazyAsyncData.
The useFetch/useLazyFetch path silently ignored it, causing fetches
to fire immediately regardless of the immediate option.

Nuxt's useFetch accepts these options as top-level keys, so spreading
asyncDataOptions into the options object is the correct fix.

Closes #1966
Closes #1785