Add gpt-4o-mini-tts model with character voice instructions #3879 (#4352)

* Add gpt-4o-mini-tts model with character voice instructions

* Restyle instructions block

* Add debug log for tts request

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Co-authored-by: Cohee <18619528+Cohee1207@users.noreply.github.com>

public/scripts/extensions/tts/index.js

@@ -476,7 +476,7 @@ async function tts(text, voiceId, char) {
         await addAudioJob(response, char);
     }
 
-    let response = await ttsProvider.generateTts(text, voiceId);
+    let response = await ttsProvider.generateTts(text, voiceId, char);
 
     // If async generator, process every chunk as it comes in
     if (typeof response[Symbol.asyncIterator] === 'function') {
@@ -1007,7 +1007,7 @@ function getCharacters(unrestricted) {
     return characters.filter(onlyUnique);
 }
 
-function sanitizeId(input) {
+export function sanitizeId(input) {
     // Remove any non-alphanumeric characters except underscore (_) and hyphen (-)
     let sanitized = encodeURIComponent(input).replace(/[^a-zA-Z0-9-_]/g, '');