init: 毛孩子计划 小程序 + Go 后端 + 内嵌后台

- pets-fe: 微信原生小程序（首页/计划/记录/报告/社区/引导），
  服务端驱动、无假数据；弹层改用 scroll-view，打开时隐藏自定义 tabBar
- pets-be: Gin + GORM(MySQL, sundynix_ 前缀) + MinIO，统一响应/分页，
  微信 code2session 登录，provider-neutral AI(DeepSeek)，go:embed React 后台
- 修复：分段选择类型不匹配（字符串 vs 数字）导致选不中

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

pets-be/internal/handler/misc.go

@@ -0,0 +1,117 @@
+package handler
+
+import (
+	"github.com/gin-gonic/gin"
+
+	"github.com/sundynix/pets-be/internal/middleware"
+	"github.com/sundynix/pets-be/internal/service"
+	"github.com/sundynix/pets-be/pkg/response"
+)
+
+// ListArticles GET /api/articles
+func (h *Handler) ListArticles(c *gin.Context) {
+	articles, err := h.svc.ListArticles()
+	if err != nil {
+		response.FailErr(c, err)
+		return
+	}
+	response.OK(c, articles)
+}
+
+// GetArticle GET /api/articles/:id
+func (h *Handler) GetArticle(c *gin.Context) {
+	article, err := h.svc.GetArticle(uintParam(c, "id"))
+	if err != nil {
+		respondErr(c, err)
+		return
+	}
+	response.OK(c, article)
+}
+
+// GetPro GET /api/pro
+func (h *Handler) GetPro(c *gin.Context) {
+	info, err := h.svc.GetPro(middleware.UserID(c))
+	if err != nil {
+		response.FailErr(c, err)
+		return
+	}
+	response.OK(c, info)
+}
+
+// ActivatePro POST /api/pro/activate
+func (h *Handler) ActivatePro(c *gin.Context) {
+	info, err := h.svc.ActivatePro(middleware.UserID(c))
+	if err != nil {
+		response.FailErr(c, err)
+		return
+	}
+	response.OK(c, info)
+}
+
+type aiChatReq struct {
+	PetID   *uint  `json:"pet_id"`
+	Session string `json:"session"`
+	Text    string `json:"text"`
+}
+
+// AIChat POST /api/ai/chat
+func (h *Handler) AIChat(c *gin.Context) {
+	var req aiChatReq
+	if err := c.ShouldBindJSON(&req); err != nil {
+		response.FailParams(c, err.Error())
+		return
+	}
+	if req.Text == "" {
+		response.FailParams(c, "问题不能为空")
+		return
+	}
+	reply, err := h.svc.AIChat(middleware.UserID(c), req.PetID, req.Session, req.Text)
+	if err != nil {
+		response.FailErr(c, err)
+		return
+	}
+	response.OK(c, gin.H{"reply": reply})
+}
+
+// HomeSummary GET /api/pets/:id/home-summary
+func (h *Handler) HomeSummary(c *gin.Context) {
+	res, err := h.svc.GetHomeSummary(middleware.UserID(c), uintParam(c, "id"))
+	if err != nil {
+		respondErr(c, err)
+		return
+	}
+	response.OK(c, res)
+}
+
+// UserSummary GET /api/user/summary
+func (h *Handler) UserSummary(c *gin.Context) {
+	res, err := h.svc.GetUserSummary(middleware.UserID(c))
+	if err != nil {
+		response.FailErr(c, err)
+		return
+	}
+	response.OK(c, res)
+}
+
+type assessSymptomReq struct {
+	Symptoms []string `json:"symptoms"`
+	Duration string   `json:"duration"`
+	Spirit   string   `json:"spirit"`
+}
+
+// AssessSymptom POST /api/pets/:id/ai/assess-symptom
+func (h *Handler) AssessSymptom(c *gin.Context) {
+	var req assessSymptomReq
+	if err := c.ShouldBindJSON(&req); err != nil {
+		response.FailParams(c, err.Error())
+		return
+	}
+	res, err := h.svc.AssessSymptom(middleware.UserID(c), uintParam(c, "id"), service.SymptomInput{
+		Symptoms: req.Symptoms, Duration: req.Duration, Spirit: req.Spirit,
+	})
+	if err != nil {
+		respondErr(c, err)
+		return
+	}
+	response.OK(c, res)
+}