chore: swagger comments

backend/internal/controllers/auth.go

@@ -24,8 +24,7 @@ func RegistrationComplete(c *gin.Context) {
 	c.Status(http.StatusNotImplemented)
 }
 
-// TODO: Document instructions on 2FA
-// @Summary Acquire tokens via login credentials or by providing 2FA code
+// @Summary Acquire tokens via login credentials (and 2FA code if needed)
 // @Tags Auth
 // @Accept json
 // @Produce json
@@ -52,7 +51,6 @@ func PasswordResetBegin(c *gin.Context) {
 	c.Status(http.StatusNotImplemented)
 }
 
-// TODO: Document instructions on 2FA
 // @Summary Complete password reset with email code and provide 2FA code or backup code if needed
 // @Tags Auth
 // @Accept json