TTS: add baseUrl support to OpenAI TTS config (#34321)

Merged via squash.

Prepared head SHA: e9a10cf81d
Co-authored-by: RealKai42 <44634134+RealKai42@users.noreply.github.com>
Co-authored-by: shakkernerd <165377636+shakkernerd@users.noreply.github.com>
Reviewed-by: @shakkernerd

src/discord/voice/manager.ts

@@ -673,7 +673,11 @@ export class DiscordVoiceManager {
       cfg: this.params.cfg,
       override: this.params.discordConfig.voice?.tts,
     });
-    const directive = parseTtsDirectives(replyText, ttsConfig.modelOverrides);
+    const directive = parseTtsDirectives(
+      replyText,
+      ttsConfig.modelOverrides,
+      ttsConfig.openai.baseUrl,
+    );
     const speakText = directive.overrides.ttsText ?? directive.cleanedText.trim();
     if (!speakText) {
       logVoiceVerbose(