整改三期：退款、后台增改删、悬赏

退款原来只有会员那条路，而且只能全额、只改本地状态。现在代喂任务的退款
能分几次退到退完：每一笔单独记一行（谁退的、多少、走哪条通道、为什么），
订单上的 refunded_cent 跟着累加，退完且未结算的任务才关闭。渠道接通时按
金额原路退回并带独立幂等键，没接通或沙箱支付的登记为"线下已退"——假装
调用了渠道比说实话更糟。已结算的任务不能顺手退：钱在喂养者账上，要退只能
由平台承担，必须显式勾选。

后台从"只能通过或驳回"变成能改能删：宠物档案可代建、可编辑、可软删除
（有进行中任务的删不掉），送养与配种能改文案和城市、能下架能删，代喂任务
能改备注、能取消（托管中的钱必须先退）。每一个写操作都进审计日志。

悬赏按方案里的 A 做：主人自愿加的钱跟着任务一起托管，结算时全额给喂养者，
平台服务费只算在基础报酬上。抽悬赏是喂养者一眼能算出来的事。

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

im/backend/internal/app/pets.go

@@ -395,8 +395,10 @@ func (a *App) adminPets(w http.ResponseWriter, r *http.Request) {
 		fail(w, http.StatusInternalServerError, 50001, "查询宠物失败")
 		return
 	}
+	// 后台要能改档案，所以这里返回完整字段，而不是只够列表显示的那几个。
 	rows, err := a.db.QueryContext(r.Context(), `SELECT p.id,p.owner_user_id,profile.nickname,u.public_id,p.name,p.species,p.breed,p.gender,
-		p.neutered,p.vaccinated_at,p.avatar_url,p.moderation_status,p.moderation_note,p.created_at`+from+` ORDER BY p.id DESC LIMIT ? OFFSET ?`,
+		p.neutered,p.vaccinated_at,p.avatar_url,p.moderation_status,p.moderation_note,p.created_at,
+		p.birthday,p.dewormed_at,p.weight_g,p.chip_no,p.temperament`+from+` ORDER BY p.id DESC LIMIT ? OFFSET ?`,
 		append(append([]any{}, args...), size, offset)...)
 	if err != nil {
 		fail(w, http.StatusInternalServerError, 50001, "查询宠物失败")
@@ -404,26 +406,54 @@ func (a *App) adminPets(w http.ResponseWriter, r *http.Request) {
 	}
 	defer rows.Close()
 	items := []map[string]any{}
+	ids := []any{}
+	placeholders := []string{}
 	for rows.Next() {
 		var id, ownerID int64
-		var nickname, publicID, name, species, breed, avatar, note string
-		var gender, neutered, moderation int
-		var vaccinated sql.NullTime
+		var nickname, publicID, name, species, breed, avatar, note, chipNo, temperament string
+		var gender, neutered, moderation, weight int
+		var vaccinated, birthday, dewormed sql.NullTime
 		var created time.Time
 		if rows.Scan(&id, &ownerID, &nickname, &publicID, &name, &species, &breed, &gender, &neutered,
-			&vaccinated, &avatar, &moderation, &note, &created) != nil {
+			&vaccinated, &avatar, &moderation, &note, &created, &birthday, &dewormed, &weight, &chipNo, &temperament) != nil {
 			continue
 		}
-		vaccinatedAt := ""
-		if vaccinated.Valid {
-			vaccinatedAt = vaccinated.Time.Format("2006-01-02")
+		day := func(value sql.NullTime) string {
+			if !value.Valid {
+				return ""
+			}
+			return value.Time.Format("2006-01-02")
 		}
 		items = append(items, map[string]any{
 			"id": id, "ownerUserId": ownerID, "ownerNickname": nickname, "ownerPublicId": publicID,
 			"name": name, "species": species, "speciesLabel": petSpecies[species], "breed": breed,
-			"gender": gender, "neutered": neutered == 1, "vaccinatedAt": vaccinatedAt, "avatar": avatar,
+			"gender": gender, "neutered": neutered == 1, "vaccinatedAt": day(vaccinated), "avatar": avatar,
 			"moderationStatus": moderation, "moderationNote": note, "createdAt": created.Format(time.RFC3339),
+			"birthday": day(birthday), "dewormedAt": day(dewormed), "weightG": weight,
+			"chipNo": chipNo, "temperament": temperament, "photos": []string{},
 		})
+		ids = append(ids, id)
+		placeholders = append(placeholders, "?")
+	}
+	// 照片单独取一遍，编辑弹窗要按整组替换，列表里就得先有整组。
+	if len(ids) > 0 {
+		mediaRows, mediaErr := a.db.QueryContext(r.Context(),
+			`SELECT pet_id,media_url FROM pet_media WHERE pet_id IN (`+strings.Join(placeholders, ",")+`) ORDER BY pet_id,sort_order,id`, ids...)
+		if mediaErr == nil {
+			defer mediaRows.Close()
+			for mediaRows.Next() {
+				var petID int64
+				var url string
+				if mediaRows.Scan(&petID, &url) != nil {
+					continue
+				}
+				for index := range items {
+					if items[index]["id"] == petID {
+						items[index]["photos"] = append(items[index]["photos"].([]string), url)
+					}
+				}
+			}
+		}
 	}
 	reply(w, map[string]any{"items": items, "total": total, "page": page, "size": size})
 }