Minor fixes

cmd/budgeteer/main.go

@@ -30,12 +30,12 @@ func main() {
 		panic("couldn't open static files")
 	}
 
-	h := &http.Handler{
+	handler := &http.Handler{
 		Service:             q,
 		TokenVerifier:       &jwt.TokenVerifier{},
 		CredentialsVerifier: &bcrypt.Verifier{},
 		StaticFS:            netHttp.FS(static),
 	}
 
-	h.Serve()
+	handler.Serve()
 }

http/session.go

@@ -73,7 +73,7 @@ func (h *Handler) loginPost(c *gin.Context) {
 		return
 	}
 
-	t, err := h.TokenVerifier.CreateToken(&user)
+	token, err := h.TokenVerifier.CreateToken(&user)
 	if err != nil {
 		c.AbortWithError(http.StatusUnauthorized, err)
 	}
@@ -85,7 +85,7 @@ func (h *Handler) loginPost(c *gin.Context) {
 		return
 	}
 
-	c.JSON(http.StatusOK, LoginResponse{t, user, budgets})
+	c.JSON(http.StatusOK, LoginResponse{token, user, budgets})
 }
 
 type LoginResponse struct {

postgres/numeric.go

@@ -72,6 +72,7 @@ func (n Numeric) Sub(o Numeric) Numeric {
 
 	panic("Cannot subtract with different exponents")
 }
+
 func (n Numeric) Add(o Numeric) Numeric {
 	left := n
 	right := o