feat(版本): 优化概览与只读状态

关键改动：

- 增加需求排序和版本只读状态规则及测试

- 完善版本概览阶段耗时、项目页和工作台展示

- 优化小宝预警请求节流、建议状态和风险过滤

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

apps/web/lib/xiaobao-risk-ai.ts

@@ -9,7 +9,7 @@ type RiskInsightCurrent = Pick<
   'riskLevel' | 'riskScore' | 'confidence' | 'forecastReleaseDate' | 'signals' | 'trend'
 >;
 
-type RiskInsightPrevious = Pick<
+export type RiskInsightPrevious = Pick<
   XiaobaoRiskSnapshot,
   | 'riskScore'
   | 'confidence'
@@ -103,6 +103,35 @@ export function shouldRequestRiskInsightWithCacheGate(
   return shouldRequestRiskInsightWithCooldown(current, previous, latestInsight, now);
 }
 
+export interface RiskInsightRequestGateInput {
+  riskCacheLoaded: boolean;
+  cache: XiaobaoRiskInsightCacheItem[];
+  current: XiaobaoVersionRisk;
+  previous?: RiskInsightPrevious;
+  lastRequestedAt?: string;
+  now?: Date;
+}
+
+export function shouldRequestRiskInsightWithRequestGate(input: RiskInsightRequestGateInput): boolean {
+  const now = input.now ?? new Date();
+  if (isRiskInsightRequestCoolingDown(input.lastRequestedAt, now)) return false;
+  return shouldRequestRiskInsightWithCacheGate(
+    input.riskCacheLoaded,
+    input.cache,
+    input.current,
+    input.previous,
+    now,
+  );
+}
+
+export function isRiskInsightRequestCoolingDown(lastRequestedAt: string | undefined, now: Date = new Date()): boolean {
+  if (!lastRequestedAt) return false;
+  const requestedAt = getTime(lastRequestedAt);
+  const nowTime = now.getTime();
+  if (!Number.isFinite(requestedAt) || !Number.isFinite(nowTime)) return false;
+  return nowTime - requestedAt < RISK_INSIGHT_COOLDOWN_MS;
+}
+
 export function buildRiskInsightSignature(risk: XiaobaoVersionRisk): string {
   return JSON.stringify({
     versionId: risk.versionId,