Sub2API v1.0 - AI API 网关（二开初始版本，基于上游 Wei-Shaw/sub2api）

backend/internal/handler/admin/account_shadow_parent.go

@@ -0,0 +1,56 @@
+package admin
+
+import (
+	"context"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+)
+
+// enrichShadowParentInfo 把母账号的展示信息回填到影子行的 parent_* 字段。
+// 纯函数：仅依赖传入的母账号 map，便于单测；非影子或母账号缺失时优雅留空。
+func enrichShadowParentInfo(items []AccountWithConcurrency, parents map[int64]*service.Account) {
+	for i := range items {
+		a := items[i].Account
+		if a == nil || a.ParentAccountID == nil {
+			continue
+		}
+		p := parents[*a.ParentAccountID]
+		if p == nil {
+			continue
+		}
+		a.ParentEmail = p.GetCredential("email")
+		a.ParentPlanType = p.GetCredential("plan_type")
+		a.ParentSubscriptionExpiresAt = p.GetCredential("subscription_expires_at")
+		a.ParentChatGPTAccountID = p.GetCredential("chatgpt_account_id")
+		a.ParentPrivacyMode = p.GetExtraString("privacy_mode")
+	}
+}
+
+// enrichShadowParents 收集本批影子行的母账号 ID、一次批量解析（避免 N+1），再回填。
+// 解析失败时不报错（parent_* 留空，降级）。
+func (h *AccountHandler) enrichShadowParents(ctx context.Context, items []AccountWithConcurrency) {
+	seen := make(map[int64]struct{})
+	for i := range items {
+		a := items[i].Account
+		if a == nil || a.ParentAccountID == nil {
+			continue
+		}
+		seen[*a.ParentAccountID] = struct{}{}
+	}
+	if len(seen) == 0 {
+		return
+	}
+	parentIDs := make([]int64, 0, len(seen))
+	for pid := range seen {
+		parentIDs = append(parentIDs, pid)
+	}
+	parents, err := h.adminService.GetAccountsByIDs(ctx, parentIDs)
+	if err != nil {
+		return
+	}
+	pmap := make(map[int64]*service.Account, len(parents))
+	for _, p := range parents {
+		pmap[p.ID] = p
+	}
+	enrichShadowParentInfo(items, pmap)
+}