fix(小宝预警): 稳定风险证据与建议更新

关键改动：

- 优化风险证据的日报工时与静默风险计算

- 稳定 AI 触发签名，避免证据细节变化造成重复请求

- 调整预警建议更新状态与相关测试

Co-Authored-By: Codex GPT-5 <codex@openai.com>

apps/web/lib/xiaobao-risk-suggestion.test.ts

@@ -103,6 +103,23 @@ test('attachXiaobaoRiskSuggestion keeps previous AI suggestion while a new one i
   assert.equal(result.aiInsight?.summary, '旧的小宝建议');
 });
 
+test('attachXiaobaoRiskSuggestion hides stale pending update notices', () => {
+  const previous = risk({ riskScore: 52, riskLevel: 'attention' });
+  const current = risk({ riskScore: 82, riskLevel: 'at_risk', delayDays: 1 });
+  const pendingKey = buildXiaobaoRiskInsightPendingKey(current);
+
+  const result = attachXiaobaoRiskSuggestion(current, {
+    insights: [insight(previous)],
+    pendingInsightKeys: [pendingKey],
+    pendingInsightAttempts: { [pendingKey]: '2026-06-30T10:00:00.000Z' },
+    now: new Date('2026-06-30T10:04:00.000Z'),
+  });
+
+  assert.equal(result.aiInsightSource, 'previous_ai');
+  assert.equal(result.aiInsightUpdating, false);
+  assert.equal(result.aiInsight?.summary, insight(previous).insight.summary);
+});
+
 test('attachXiaobaoRiskSuggestion uses the current AI suggestion when the signature matches', () => {
   const current = risk({ riskScore: 82, riskLevel: 'at_risk', delayDays: 1 });
 
@@ -172,3 +189,49 @@ test('buildXiaobaoRiskInsightPendingKey stays stable for refresh-only risk drift
 
   assert.equal(buildXiaobaoRiskInsightPendingKey(before), buildXiaobaoRiskInsightPendingKey(after));
 });
+
+test('buildXiaobaoRiskInsightPendingKey stays stable when only daily report evidence details change', () => {
+  const before = risk({
+    riskLevel: 'at_risk',
+    riskScore: 82,
+    confidence: 70,
+    dailyEvidence: {
+      todayDeliveries: [],
+      todayProgress: [
+        { id: 'ev-old', title: 'Progress', summary: 'Worked on checkout flow.', occurredAt: '2026-06-30T03:00:00.000Z' },
+      ],
+      todayCreations: [],
+      todayRisks: [],
+      progressNotes: [],
+      needsProgressItems: [],
+      recentActivityCount: 2,
+      totalActivityCount: 1,
+      todayActualHours: 1,
+      lastActivityAt: '2026-06-30T03:00:00.000Z',
+    },
+  });
+  const after = risk({
+    riskLevel: 'at_risk',
+    riskScore: 82,
+    confidence: 70,
+    dailyEvidence: {
+      todayDeliveries: [],
+      todayProgress: [
+        { id: 'ev-new', title: 'Progress', summary: 'Updated checkout flow and added handoff notes.', occurredAt: '2026-07-01T04:00:00.000Z' },
+        { id: 'ev-new-2', title: 'Progress', summary: 'Confirmed QA scope.', occurredAt: '2026-07-01T05:00:00.000Z' },
+      ],
+      todayCreations: [],
+      todayRisks: [],
+      progressNotes: [
+        { id: 'note-new', title: 'Note', summary: 'Next work starts tomorrow morning.', occurredAt: '2026-07-01T06:00:00.000Z' },
+      ],
+      needsProgressItems: [],
+      recentActivityCount: 6,
+      totalActivityCount: 3,
+      todayActualHours: 4,
+      lastActivityAt: '2026-07-01T06:00:00.000Z',
+    },
+  });
+
+  assert.equal(buildXiaobaoRiskInsightPendingKey(before), buildXiaobaoRiskInsightPendingKey(after));
+});