feat(fe+be): 身份卡加公章、修性别符号、电话显示全、照护卡标题两行

- 修正性别 ♂/♀：用名字字号量宽度再定位，不再怼到名字上（之前用小字号量偏了）
- 正反两张卡右上角各盖一枚「肉垫计划 · 官方认证」红色公章（双圈+五角星，微旋转半透明）
- 照护卡标题改成两行「X星地球移民 / 居民身份卡」（按猫狗取 喵/汪/宠）
- 正面「物ID」改为「ID」
- 后端 IDCard.Phone 返回完整手机号，不再脱敏

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

pets-be/internal/service/idcard.go

@@ -159,7 +159,7 @@ func (s *Service) GetIDCard(userID, petID string) (*IDCard, error) {
 		Birthday: bd, Age: pet.Age, Days: days, Zodiac: zodiac, Weight: pet.Weight, Intro: intro,
 		Color: pet.Color, Personality: pet.Personality,
 		AvatarURL: pet.AvatarURL, IDNo: petIDNo(pet), Validity: validity,
-		Owner: owner, Phone: maskPhone(user.Phone), Allergy: allergy, Notes: pet.Notes,
+		Owner: owner, Phone: user.Phone, Allergy: allergy, Notes: pet.Notes,
 		VaccineState: vaccineState, DewormState: dewormState, Org: "肉垫计划",
 	}