feat: rebuild pet app and backend around core care flows

pets-be/configs/config.example.yaml

@@ -1,43 +1,33 @@
 server:
   port: 9090
-  mode: debug            # debug | release
+  mode: release
 
-mysql:
-  host: 127.0.0.1
-  port: 3306
+postgres:
+  host: 192.168.100.127
+  port: 5432
   user: root
   password: root
-  database: pets
-  charset: utf8mb4
+  database: sundynix-pets
+  ssl_mode: disable
 
 minio:
-  endpoint: 127.0.0.1:9000
+  endpoint: https://s3.sundynix.cn
   access_key: sundynix
   secret_key: sundynix
-  bucket: pets
-  use_ssl: false
-  public_base_url: http://127.0.0.1:9000   # 拼接可访问的对象 URL
+  bucket: sundynix-pet
+  use_ssl: true
 
 jwt:
-  secret: change-me-to-a-long-random-string    # 生产用 PETS_JWT_SECRET 覆盖
+  secret: ""                   # 用 PETS_JWT_SECRET 注入
+  expire_hours: 168
 
 wechat:
-  app_id: your-wechat-app-id
-  app_secret: your-wechat-app-secret            # 敏感凭证：生产用 PETS_WECHAT_APP_SECRET 环境变量覆盖
+  app_id: ""
+  app_secret: ""
 
 auth:
-  dev_login: true        # 仍保留 Mock 登录便于本地 curl 调试；上线可置 false 只留微信登录
+  dev_login: false
 
 admin:
   username: sundynix
-  password: change-me     # 启动时若无同名管理员则 seed 此账号
-
-ai:
-  enabled: false          # false 时全部走规则化文案（不烧 token）；接大模型改 true
-  provider: openai        # openai 兼容协议，适配 DeepSeek/Qwen(兼容模式)/Gemini(兼容端点)等
-  base_url: https://api.deepseek.com   # 换供应商只改这里 + model
-  api_key: your-ai-api-key             # 敏感：生产用 PETS_AI_API_KEY 环境变量覆盖
-  model: deepseek-chat
-  temperature: 0.6
-  max_tokens: 1024
-  timeout_sec: 30
+  password: sundynix