Update src/shared/api.ts

Author: edelauna

src/shared/api.ts

@@ -135,7 +135,7 @@ export const getModelMaxOutputTokens = ({
 	// Models that expose a configurable max-output slider (e.g. Z.ai GLM) honor the user's
 	// explicit override instead of the default 20% context-window clamp, capped at the model's
 	// own ceiling. This keeps the runtime budget consistent with the value sent to the provider.
-	if (model.supportsMaxTokens && settings?.modelMaxTokens) {
+	if (model.supportsMaxTokens && settings?.modelMaxTokens != null && settings.modelMaxTokens > 0) {
 		return model.maxTokens ? Math.min(settings.modelMaxTokens, model.maxTokens) : settings.modelMaxTokens
 	}