[server] Reduce noise from error logs (#1409)

## Description

## Tests

server/pkg/controller/storagebonus/referral_cron.go

@@ -52,7 +52,7 @@ func (c *Controller) PaymentUpgradeOrDowngradeCron() {
 		return
 	}
 	if len(bonusPenaltyCandidates) > 0 {
-		logger.WithField("count", len(bonusPenaltyCandidates)).Error("candidates found for downgrade penalty")
 		// todo: implement downgrade penalty
+		logger.WithField("count", len(bonusPenaltyCandidates)).Warn("candidates found for downgrade penalty")
 	}
 }

server/pkg/controller/user/srp.go

@@ -2,6 +2,8 @@ package user
 
 import (
 	"context"
+	"database/sql"
+	"errors"
 	"github.com/ente-io/museum/ente"
 	"github.com/ente-io/museum/pkg/utils/auth"
 	"github.com/ente-io/stacktrace"
@@ -88,7 +90,11 @@ func (c *UserController) UpdateSrpAndKeyAttributes(context *gin.Context,
 func (c *UserController) GetSRPAttributes(context *gin.Context, email string) (*ente.GetSRPAttributesResponse, error) {
 	userID, err := c.UserRepo.GetUserIDWithEmail(email)
 	if err != nil {
-		return nil, stacktrace.Propagate(err, "user does not exist")
+		if errors.Is(err, sql.ErrNoRows) {
+			return nil, stacktrace.Propagate(ente.ErrNotFound, "user does not exist")
+		} else {
+			return nil, stacktrace.Propagate(err, "failed to get user")
+		}
 	}
 	srpAttributes, err := c.UserAuthRepo.GetSRPAttributes(userID)
 	if err != nil {

server/pkg/utils/handler/handler.go

@@ -30,6 +30,7 @@ func Error(c *gin.Context, err error) {
 	//    echo "GET /ping HTTP/1.0\r\nContent-Length: 300\r\n\r\n" | nc localhost 8080
 	if errors.Is(err, ente.ErrStorageLimitExceeded) ||
 		errors.Is(err, ente.ErrNoActiveSubscription) ||
+		errors.Is(err, ente.ErrInvalidPassword) ||
 		errors.Is(err, io.ErrUnexpectedEOF) ||
 		errors.Is(err, syscall.EPIPE) ||
 		errors.Is(err, syscall.ECONNRESET) {