feat: Implement API endpoints for user management and information retrieval

- Added new API endpoints for user information retrieval, registration, login, logout, self-management, administration, options management, channel management, token management, redemption management, log management, and group retrieval
- Improved authentication flow with GitHub, WeChat, and email
- Added a function `GetSelfByToken` for getting user information using an OpenAI API token

controller/user.go

@@ -312,6 +312,16 @@ func GetAffCode(c *gin.Context) {
 	return
 }
 
+// GetSelfByToken get user by openai api token
+func GetSelfByToken(c *gin.Context) {
+	c.JSON(http.StatusOK, gin.H{
+		"uid":      c.GetInt("id"),
+		"token_id": c.GetInt("token_id"),
+		"username": c.GetString("username"),
+	})
+	return
+}
+
 func GetSelf(c *gin.Context) {
 	id := c.GetInt("id")
 	user, err := model.GetUserById(id, false)