Create article index works differently when called from Axum server and from ripgrep middleware

Axum server calls index without adding article content to ArticleCache, [see](https://github.com/terraphim/terraphim-ai/blob/b1f3db2649e9dc6b92cec1157b4275b4510e333f/terraphim_server/src/api.rs#L27)
Ripgrep middleware behaves correctly and have two calls - one for index and another for cache.