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/models/prompt.rs

@@ -29,3 +29,12 @@ pub struct PromptVersionRow {
     pub min_app_version: Option<String>,
     pub created_at: String,
 }
+
+/// prompt_sync_status 表行
+#[derive(Debug, FromRow)]
+pub struct PromptSyncStatusRow {
+    pub device_id: String,
+    pub template_id: String,
+    pub synced_version: i32,
+    pub synced_at: String,
+}

crates/zclaw-saas/src/models/telemetry.rs

@@ -2,6 +2,24 @@
 
 use sqlx::FromRow;
 
+/// telemetry_reports 表行
+#[derive(Debug, FromRow)]
+pub struct TelemetryReportRow {
+    pub id: String,
+    pub account_id: String,
+    pub device_id: String,
+    pub app_version: Option<String>,
+    pub model_id: String,
+    pub input_tokens: i64,
+    pub output_tokens: i64,
+    pub latency_ms: Option<i32>,
+    pub success: bool,
+    pub error_type: Option<String>,
+    pub connection_mode: Option<String>,
+    pub reported_at: String,
+    pub created_at: String,
+}
+
 /// telemetry 按 model 分组统计
 #[derive(Debug, FromRow)]
 pub struct TelemetryModelStatsRow {