fix(ai): improve API retry handling

apps/desktop/src/lib/backend/api.ts

@@ -272,6 +272,8 @@ export const loadMcpGlobalPolicy = forward("loadMcpGlobalPolicy");
 export const saveMcpGlobalPolicy = forward("saveMcpGlobalPolicy");
 export const loadMaxAgentTurns = forward("loadMaxAgentTurns");
 export const saveMaxAgentTurns = forward("saveMaxAgentTurns");
+export const loadMaxRetries = forward("loadMaxRetries");
+export const saveMaxRetries = forward("saveMaxRetries");
 export const completeAppClose = forward("completeAppClose");
 export const requestAppClose = forward("requestAppClose");
 export const setDriverStoreDir = forward("setDriverStoreDir");