fix(publish): 补齐实体键唯一索引的测试覆盖与守卫消息

internal/repository/publish_status_integration_test.go

@@ -9,6 +9,7 @@ package repository
 
 import (
 	"context"
+	"fmt"
 	"os"
 	"path/filepath"
 	"testing"
@@ -39,7 +40,13 @@ func applyMigration(t *testing.T, db *gorm.DB, name string) {
 func seedRunway(t *testing.T, db *gorm.DB, status string, year uint16) uint32 {
 	t.Helper()
 	now := uint32(1_800_000_000)
-	rw := model.BrandRunway{TitleEn: "view-test", Year: year, Status: status, CreatedAt: now, UpdatedAt: now}
+	// 实体键必须非空且按 year 派生：2026-09-22-03 的唯一索引落库后，brand_id=0 且
+	// season_code / collection_type 均为空会让同一次运行里的多条种子行（乃至上次运行
+	// 未清理的遗留行）被当成「同一实体」而互相冲突，失败点还会伪装成迁移体检。
+	rw := model.BrandRunway{
+		TitleEn: "view-test", Year: year, Status: status, CreatedAt: now, UpdatedAt: now,
+		SeasonCode: fmt.Sprintf("T%04d", year), CollectionType: "t",
+	}
 	if err := db.Create(&rw).Error; err != nil {
 		t.Fatalf("插入走秀失败: %v", err)
 	}