fix: sync non-PTS privacy updates

internal/app/privacy/cache.go

@@ -87,34 +87,6 @@ func (c *CachedPrivacyStore) SetPrivacyRules(ctx context.Context, rules domain.P
 	return nil
 }
 
-func (c *CachedPrivacyStore) SetPrivacyRulesWithUpdate(
-	ctx context.Context,
-	rules domain.PrivacyRules,
-	event domain.UpdateEvent,
-	excludeAuthKeyID [8]byte,
-	excludeSessionID int64,
-) (domain.UpdateEvent, error) {
-	writer, ok := c.inner.(store.PrivacyUpdateStore)
-	if !ok {
-		return domain.UpdateEvent{}, domain.ErrPrivacyRuleInvalid
-	}
-	recorded, err := writer.SetPrivacyRulesWithUpdate(ctx, rules, event, excludeAuthKeyID, excludeSessionID)
-	if err != nil {
-		return domain.UpdateEvent{}, err
-	}
-	c.InvalidateOwners(rules.OwnerUserID)
-	_ = c.WarmOwners(ctx, rules.OwnerUserID)
-	return recorded, nil
-}
-
-func (c *CachedPrivacyStore) SupportsDurablePrivacyUpdates() bool {
-	if c == nil {
-		return false
-	}
-	capability, ok := c.inner.(interface{ SupportsDurablePrivacyUpdates() bool })
-	return ok && capability.SupportsDurablePrivacyUpdates()
-}
-
 // WarmOwners 在低频写/变更通知路径一次性装入 owner 的完整规则集。调用方必须先
 // InvalidateOwners；epoch 保证预热期间若又发生失效，不会把旧快照写回。
 func (c *CachedPrivacyStore) WarmOwners(ctx context.Context, ownerUserIDs ...int64) error {