refactor(feeds): clone app_config to avoid borrow issues

The changes clone app_config instances when reading from shared context to prevent potential borrow checker issues and improve thread safety. This pattern is now consistently applied across multiple methods in the feeds update and LLM feature implementations.

Author: sopaco

app/src-tauri/src/daemon/feeds_update.rs

@@ -36,7 +36,7 @@ async fn schedule_loop<R: Runtime>(
     state: Arc<HybridRuntimeState>,
 ) -> anyhow::Result<()> {
     let features = &state.features_api;
-    let app_config = &features.context.read().await.app_config;
+    let app_config = { features.context.read().await.app_config.clone() };
     // 在所有权转移前读取需要的配置
     let update_interval = Duration::from_secs(match &app_config.daemon.frequency_feeds_update {
         true => 60 * 60 * 1,