fix: update FLEX_COMPATIBLE_MODELS to include specific model versions

Author: mechanicmuthu

webview-ui/src/components/settings/ServiceTier.tsx

@@ -15,6 +15,8 @@ const FLEX_COMPATIBLE_MODELS = [
 	"gpt-5-2025-08-07",
 	"gpt-5-mini-2025-08-07",
 	"gpt-5-nano-2025-08-07",
+	"o3-2025-04-16",
+	"o4-mini-2025-04-16",
 	"o3",
 	"o3-high",
 	"o3-low",