feat: 宠物加性格/过敏/备注字段 + 身份卡照护信息 + 微信取手机号

- Pet 增 personality/allergy/notes；建档表单加「性格标签(多选)/过敏/备注」
- IDCard 增 color/personality/owner/phone(脱敏)/allergy/notes/疫苗驱虫状态/发证机构
- 微信取手机号：POST /api/user/phone 用 getPhoneNumber 的 code 换手机号存库
  (BindPhoneByCode 走 getuserphonenumber，复用 access_token)

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

pets-be/internal/service/pet.go

@@ -27,6 +27,9 @@ type PetInput struct {
 	Breed        string
 	AvatarFileID string
 	Goals        datatypes.JSON
+	Personality  string
+	Allergy      string
+	Notes        string
 }
 
 func normalizeWeight(w string) string {
@@ -86,6 +89,9 @@ func (s *Service) CreatePet(userID string, in PetInput) (*model.Pet, error) {
 		Color:        in.Color,
 		Breed:        in.Breed,
 		AvatarFileID: in.AvatarFileID,
+		Personality:  in.Personality,
+		Allergy:      in.Allergy,
+		Notes:        in.Notes,
 		HealthStatus: "正常",
 		Goals:        in.Goals,
 	}