将 session 清理错误日志改为 Debug 格式并忽略 tiptap 资源目录

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

.gitignore

@@ -7,4 +7,5 @@
 /package-lock.json
 others/
 public/style.css
+public/tiptap
 .env

src/tasks/session_cleanup.rs

@@ -14,11 +14,11 @@ pub async fn run_cleanup() {
                     .execute("DELETE FROM sessions WHERE expires_at < NOW()", &[])
                     .await
                 {
-                    tracing::error!("Session cleanup error: {}", e);
+                    tracing::error!("Session cleanup error: {:?}", e);
                 }
             }
             Err(e) => {
-                tracing::error!("Failed to get DB connection for cleanup: {}", e);
+                tracing::error!("Failed to get DB connection for cleanup: {:?}", e);
             }
         }
     }