docs(frank-tts): crosslink the browser-Kokoro rejector both ways

A consumer that lists the 29-name af_*/am_*/bf_*/bm_* pack and refuses
narrator1 without a request reaching the façade is synthesizing in the
browser. Frank TTS's troubleshooting table gains that symptom; OpenWebUI's
See Also gains the service page.

serverAppConfigs-docs/Dankclaw/OpenWebUI.md

@@ -385,6 +385,7 @@ neither.
 ## See Also
 
 - [[Dankclaw Stack]]
+- [[Frank TTS]] — the speech endpoint behind *Text-to-speech (frank-tts)*
 - [[Hermes]] — the agent OpenWebUI can talk to
 - [[SearXNG]] — the search engine on this host
 - [LLM knowledge base](../LLM/index.md) — the vLLM and llama.cpp endpoints