fix(desktop): DeerFlow UI — ChatArea refactor + ai-elements + dead CSS cleanup

ChatArea retry button uses setInput instead of direct sendToGateway,
fix bootstrap spinner stuck for non-logged-in users,
remove dead CSS (aurora-title/sidebar-open/quick-action-chips),
add ai components (ReasoningBlock/StreamingText/ChatMode/ModelSelector/TaskProgress),
add ClassroomPlayer + ResizableChatLayout + artifact panel

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

crates/zclaw-saas/src/scheduled_task/service.rs

@@ -20,7 +20,9 @@ struct ScheduledTaskRow {
     last_run_at: Option<String>,
     next_run_at: Option<String>,
     run_count: i32,
+    last_result: Option<String>,
     last_error: Option<String>,
+    last_duration_ms: Option<i64>,
     input_payload: Option<serde_json::Value>,
     created_at: String,
 }
@@ -41,7 +43,9 @@ impl ScheduledTaskRow {
             last_run: self.last_run_at.clone(),
             next_run: self.next_run_at.clone(),
             run_count: self.run_count,
+            last_result: self.last_result.clone(),
             last_error: self.last_error.clone(),
+            last_duration_ms: self.last_duration_ms,
             created_at: self.created_at.clone(),
         }
     }
@@ -86,7 +90,9 @@ pub async fn create_task(
         last_run: None,
         next_run: None,
         run_count: 0,
+        last_result: None,
         last_error: None,
+        last_duration_ms: None,
         created_at: now,
     })
 }
@@ -99,7 +105,7 @@ pub async fn list_tasks(
     let rows: Vec<ScheduledTaskRow> = sqlx::query_as(
         "SELECT id, account_id, name, description, schedule, schedule_type,
                 target_type, target_id, enabled, last_run_at, next_run_at,
-                run_count, last_error, input_payload, created_at
+                run_count, last_result, last_error, last_duration_ms, input_payload, created_at
          FROM scheduled_tasks WHERE account_id = $1 ORDER BY created_at DESC"
     )
     .bind(account_id)
@@ -118,7 +124,7 @@ pub async fn get_task(
     let row: Option<ScheduledTaskRow> = sqlx::query_as(
         "SELECT id, account_id, name, description, schedule, schedule_type,
                 target_type, target_id, enabled, last_run_at, next_run_at,
-                run_count, last_error, input_payload, created_at
+                run_count, last_result, last_error, last_duration_ms, input_payload, created_at
          FROM scheduled_tasks WHERE id = $1 AND account_id = $2"
     )
     .bind(task_id)

crates/zclaw-saas/src/scheduled_task/types.rs

@@ -58,6 +58,8 @@ pub struct ScheduledTaskResponse {
     pub last_run: Option<String>,
     pub next_run: Option<String>,
     pub run_count: i32,
+    pub last_result: Option<String>,
     pub last_error: Option<String>,
+    pub last_duration_ms: Option<i64>,
     pub created_at: String,
 }