Update Flash to 05-20 (#226)

src/ipc/shared/language_model_helpers.ts

@@ -84,7 +84,7 @@ export const MODEL_OPTIONS: Record<string, ModelOption[]> = {
     },
     // https://ai.google.dev/gemini-api/docs/models#gemini-2.5-flash-preview
     {
-      name: "gemini-2.5-flash-preview-04-17",
+      name: "gemini-2.5-flash-preview-05-20",
       displayName: "Gemini 2.5 Flash",
       description:
         "Preview version of Google's Gemini 2.5 Flash model (free tier available)",

src/ipc/utils/get_model_client.ts

@@ -20,7 +20,7 @@ const dyadGatewayUrl = process.env.DYAD_GATEWAY_URL;
 const AUTO_MODELS = [
   {
     provider: "google",
-    name: "gemini-2.5-flash-preview-04-17",
+    name: "gemini-2.5-flash-preview-05-20",
   },
   {
     provider: "anthropic",