Merge branch 'wsh_dev' into 'main'

feat: backend gate fallback + metric_diff docs + submit_sft fix

See merge request wuyang6/zk-data-agent!5

frontend/app/app/assistant.tsx

@@ -66,8 +66,7 @@ export const Assistant = ({ initialSessionId }: AssistantProps = {}) => {
 					const lastSessionId = getLastSessionId(messages);
 					const pendingWorkspaceSessionId =
 						messages.length <= 1 ? readPendingWorkspaceSessionId() : null;
-					const selectedResumeSessionId =
-						messages.length > 1 ? selectedSessionId : null;
+					const selectedResumeSessionId = selectedSessionId;
 					const outgoingSessionId =
 						lastSessionId ??
 						selectedResumeSessionId ??

frontend/app/components/assistant-ui/thread.tsx

@@ -1926,6 +1926,9 @@ function SkillInsertDialog() {
 								className="min-w-0 flex-1 text-left"
 								onClick={() => {
 									insertComposerText(`Use the ${skill.name} skill.\n\n`);
+									if (skill.name === "model-iteration") {
+										dispatchSkillToggled({ skill: skill.name, enabled: true });
+									}
 									setOpen(false);
 								}}
 							>

frontend/app/components/training/metrics-chart-panel.tsx

@@ -28,9 +28,14 @@ const METRIC_LABELS: Record<string, string> = {
 	req_set_car: "需求集合(车载)",
 	dapan_car: "大盘车载",
 	specific_test: "Specific Test",
+	target_subset: "目标集合",
+	icl_test: "ICL Test",
+	overall: "大盘整体",
 	triage_err_rate: "Triage 错误率",
 	bvt_nav: "导航BVT",
 	talkable_controllable: "可聊可控",
+	badcase_2025: "Badcase 2025",
+	autotask: "自动任务",
 	target_subset_count: "目标子集数量",
 	target_subset_wrong: "目标子集错误数",
 	target_subset_correct: "目标子集正确数",