feat: sync durable moderation and appeals

internal/rpc/account_settings_cache.go

@@ -45,6 +45,46 @@ func (c *accountSettingsCache) Delete(userID int64) {
 	c.cache.Invalidate(userID)
 }
 
+func (c *accountSettingsCache) Store(userID int64, settings domain.AccountSettings) {
+	if c == nil || userID == 0 {
+		return
+	}
+	c.cache.Store(userID, settings)
+}
+
+type accountSettingsBatchReader interface {
+	GetAccountSettingsBatch(ctx context.Context, userIDs []int64) (map[int64]domain.AccountSettings, error)
+}
+
+func (c *accountSettingsCache) getOrLoadBatch(
+	ctx context.Context,
+	userIDs []int64,
+	svc accountSettingsService,
+) (map[int64]domain.AccountSettings, error) {
+	if len(userIDs) == 0 {
+		return map[int64]domain.AccountSettings{}, nil
+	}
+	return c.cache.GetOrLoadBatch(
+		ctx,
+		userIDs,
+		func(int64) (int64, bool) { return 0, true },
+		func(ctx context.Context, missing []int64) (map[int64]domain.AccountSettings, error) {
+			if batch, ok := svc.(accountSettingsBatchReader); ok {
+				return batch.GetAccountSettingsBatch(ctx, missing)
+			}
+			out := make(map[int64]domain.AccountSettings, len(missing))
+			for _, userID := range missing {
+				settings, err := svc.GetAccountSettings(ctx, userID)
+				if err != nil {
+					return nil, err
+				}
+				out[userID] = settings
+			}
+			return out, nil
+		},
+	)
+}
+
 // cachedAccountSettings 取（缓存的）账号单例设置；服务未接通返回默认。
 func (r *Router) cachedAccountSettings(ctx context.Context, userID int64) (domain.AccountSettings, error) {
 	svc, ok := r.accountSettingsSvc()