shitton of the ai changes

src/ai/speech-to-text-models.ts

@@ -0,0 +1,8 @@
+const OLLAMA_SPEECH_TO_TEXT_MODELS = new Set([
+    "gemma4:e2b",
+    "gemma4:e4b",
+]);
+
+export function isOllamaSpeechToTextModel(model: string | undefined | null): boolean {
+    return !!model && OLLAMA_SPEECH_TO_TEXT_MODELS.has(model.trim().toLowerCase());
+}