feat(auth): add mini program test code endpoint (#51)

internal/common/auth/handler/auth_handler.go

@@ -155,6 +155,11 @@ type updateProfileRequest struct {
 	AvatarURL string `json:"avatar_url"`
 }
 
+type miniProgramCodeQuery struct {
+	Path  string `form:"path"`
+	Width int    `form:"width"`
+}
+
 func (h *AuthHandler) UpdateProfile(c *gin.Context) {
 	user := middleware.MustCurrentUser(c)
 
@@ -181,3 +186,23 @@ func (h *AuthHandler) UpdateProfile(c *gin.Context) {
 		"avatar_url": updated.AvatarURL,
 	}))
 }
+
+func (h *AuthHandler) GetMiniProgramTestCode(c *gin.Context) {
+	user := middleware.MustCurrentUser(c)
+
+	var query miniProgramCodeQuery
+	if err := c.ShouldBindQuery(&query); err != nil {
+		c.JSON(http.StatusBadRequest, model.Error(http.StatusBadRequest, "参数错误"))
+		return
+	}
+
+	codeBytes, err := h.authService.GetMiniProgramTestCode(c.Request.Context(), user.ID, query.Path, query.Width)
+	if err != nil {
+		log.Printf("[get_mini_program_test_code] error: %v", err)
+		c.JSON(http.StatusInternalServerError, model.Error(http.StatusInternalServerError, "获取小程序码失败"))
+		return
+	}
+
+	c.Header("Cache-Control", "no-store")
+	c.Data(http.StatusOK, "image/png", codeBytes)
+}