Add motivation quote feature to smoking tracking API

- Introduced a new database model `SmokeMotivationQuote` for storing motivational quotes.
- Added a new API endpoint `GET /api/v1/smoke/motivation` to retrieve motivation quotes for users.
- Updated the main.go file to include the new model in the auto-migration process.
- Enhanced smoke_routes.go to register the new motivation route with the smoke handler.

internal/smoke/handler/smoke_motivation_handler.go

@@ -0,0 +1,33 @@
+package handler
+
+import (
+	"net/http"
+	"time"
+
+	"github.com/gin-gonic/gin"
+
+	"wx_service/internal/middleware"
+	"wx_service/internal/model"
+)
+
+func (h *SmokeHandler) Motivation(c *gin.Context) {
+	user, ok := middleware.CurrentUser(c)
+	if !ok {
+		c.JSON(http.StatusUnauthorized, model.Error(http.StatusUnauthorized, "未登录或登录已过期"))
+		return
+	}
+
+	profile, err := h.smokeProfileService.Get(c.Request.Context(), int(user.ID))
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, model.Error(http.StatusInternalServerError, "获取基础信息失败，请稍后重试"))
+		return
+	}
+
+	result, err := h.smokeLogService.Motivation(c.Request.Context(), int(user.ID), time.Now().In(time.Local), profile)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, model.Error(http.StatusInternalServerError, "生成激励语失败，请稍后重试"))
+		return
+	}
+
+	c.JSON(http.StatusOK, model.Success(result))
+}