🎵 feat: Cumulative Transcription Support for External STT (#9318)

* 🔧 fix: TTS and STT Services to use AppConfig

- Updated `getProviderSchema` and `getProvider` methods to accept an optional `appConfig` parameter, allowing for more flexible configuration retrieval.
- Improved error handling by ensuring that the app configuration is checked before accessing TTS and STT schemas.
- Refactored `processTextToSpeech` and `streamAudio` methods to utilize the new `appConfig` parameter for better clarity and maintainability.

* feat: Cumulative Transcription Support for STT External

* style: fix medium-sized styling for admin settings dialogs

client/src/components/SidePanel/Agents/AdminSettings.tsx

@@ -157,7 +157,7 @@ const AdminSettings = () => {
           {localize('com_ui_admin_settings')}
         </Button>
       </OGDialogTrigger>
-      <OGDialogContent className="border-border-light bg-surface-primary text-text-primary md:w-1/4">
+      <OGDialogContent className="border-border-light bg-surface-primary text-text-primary lg:w-1/4">
         <OGDialogTitle>{`${localize('com_ui_admin_settings')} - ${localize(
           'com_ui_agents',
         )}`}</OGDialogTitle>

client/src/components/SidePanel/Memories/AdminSettings.tsx

@@ -146,7 +146,7 @@ const AdminSettings = () => {
           {localize('com_ui_admin_settings')}
         </Button>
       </OGDialogTrigger>
-      <OGDialogContent className="border-border-light bg-surface-primary text-text-primary md:w-1/4">
+      <OGDialogContent className="border-border-light bg-surface-primary text-text-primary lg:w-1/4">
         <OGDialogTitle>{`${localize('com_ui_admin_settings')} - ${localize(
           'com_ui_memories',
         )}`}</OGDialogTitle>