diff --git a/backend/ent/attachment.go b/backend/ent/attachment.go
index 8e70341..e65f1e2 100644
--- a/backend/ent/attachment.go
+++ b/backend/ent/attachment.go
@@ -70,8 +70,8 @@ func (e AttachmentEdges) DocumentOrErr() (*Document, error) {
 }
 
 // scanValues returns the types for scanning values from sql.Rows.
-func (*Attachment) scanValues(columns []string) ([]interface{}, error) {
-	values := make([]interface{}, len(columns))
+func (*Attachment) scanValues(columns []string) ([]any, error) {
+	values := make([]any, len(columns))
 	for i := range columns {
 		switch columns[i] {
 		case attachment.FieldType:
@@ -93,7 +93,7 @@ func (*Attachment) scanValues(columns []string) ([]interface{}, error) {
 
 // assignValues assigns the values that were returned from sql.Rows (after scanning)
 // to the Attachment fields.
-func (a *Attachment) assignValues(columns []string, values []interface{}) error {
+func (a *Attachment) assignValues(columns []string, values []any) error {
 	if m, n := len(values), len(columns); m < n {
 		return fmt.Errorf("mismatch number of scan values: %d != %d", m, n)
 	}
diff --git a/backend/ent/attachment/where.go b/backend/ent/attachment/where.go
index e898d49..28b806e 100644
--- a/backend/ent/attachment/where.go
+++ b/backend/ent/attachment/where.go
@@ -35,7 +35,7 @@ func IDNEQ(id uuid.UUID) predicate.Attachment {
 // IDIn applies the In predicate on the ID field.
 func IDIn(ids ...uuid.UUID) predicate.Attachment {
 	return predicate.Attachment(func(s *sql.Selector) {
-		v := make([]interface{}, len(ids))
+		v := make([]any, len(ids))
 		for i := range v {
 			v[i] = ids[i]
 		}
@@ -46,7 +46,7 @@ func IDIn(ids ...uuid.UUID) predicate.Attachment {
 // IDNotIn applies the NotIn predicate on the ID field.
 func IDNotIn(ids ...uuid.UUID) predicate.Attachment {
 	return predicate.Attachment(func(s *sql.Selector) {
-		v := make([]interface{}, len(ids))
+		v := make([]any, len(ids))
 		for i := range v {
 			v[i] = ids[i]
 		}
@@ -112,7 +112,7 @@ func CreatedAtNEQ(v time.Time) predicate.Attachment {
 
 // CreatedAtIn applies the In predicate on the "created_at" field.
 func CreatedAtIn(vs ...time.Time) predicate.Attachment {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -123,7 +123,7 @@ func CreatedAtIn(vs ...time.Time) predicate.Attachment {
 
 // CreatedAtNotIn applies the NotIn predicate on the "created_at" field.
 func CreatedAtNotIn(vs ...time.Time) predicate.Attachment {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -176,7 +176,7 @@ func UpdatedAtNEQ(v time.Time) predicate.Attachment {
 
 // UpdatedAtIn applies the In predicate on the "updated_at" field.
 func UpdatedAtIn(vs ...time.Time) predicate.Attachment {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -187,7 +187,7 @@ func UpdatedAtIn(vs ...time.Time) predicate.Attachment {
 
 // UpdatedAtNotIn applies the NotIn predicate on the "updated_at" field.
 func UpdatedAtNotIn(vs ...time.Time) predicate.Attachment {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -240,7 +240,7 @@ func TypeNEQ(v Type) predicate.Attachment {
 
 // TypeIn applies the In predicate on the "type" field.
 func TypeIn(vs ...Type) predicate.Attachment {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -251,7 +251,7 @@ func TypeIn(vs ...Type) predicate.Attachment {
 
 // TypeNotIn applies the NotIn predicate on the "type" field.
 func TypeNotIn(vs ...Type) predicate.Attachment {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
diff --git a/backend/ent/attachment_query.go b/backend/ent/attachment_query.go
index d088cce..5554bfb 100644
--- a/backend/ent/attachment_query.go
+++ b/backend/ent/attachment_query.go
@@ -401,10 +401,10 @@ func (aq *AttachmentQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*A
 	if withFKs {
 		_spec.Node.Columns = append(_spec.Node.Columns, attachment.ForeignKeys...)
 	}
-	_spec.ScanValues = func(columns []string) ([]interface{}, error) {
+	_spec.ScanValues = func(columns []string) ([]any, error) {
 		return (*Attachment).scanValues(nil, columns)
 	}
-	_spec.Assign = func(columns []string, values []interface{}) error {
+	_spec.Assign = func(columns []string, values []any) error {
 		node := &Attachment{config: aq.config}
 		nodes = append(nodes, node)
 		node.Edges.loadedTypes = loadedTypes
@@ -503,11 +503,14 @@ func (aq *AttachmentQuery) sqlCount(ctx context.Context) (int, error) {
 }
 
 func (aq *AttachmentQuery) sqlExist(ctx context.Context) (bool, error) {
-	n, err := aq.sqlCount(ctx)
-	if err != nil {
+	switch _, err := aq.FirstID(ctx); {
+	case IsNotFound(err):
+		return false, nil
+	case err != nil:
 		return false, fmt.Errorf("ent: check existence: %w", err)
+	default:
+		return true, nil
 	}
-	return n > 0, nil
 }
 
 func (aq *AttachmentQuery) querySpec() *sqlgraph.QuerySpec {
@@ -608,7 +611,7 @@ func (agb *AttachmentGroupBy) Aggregate(fns ...AggregateFunc) *AttachmentGroupBy
 }
 
 // Scan applies the group-by query and scans the result into the given value.
-func (agb *AttachmentGroupBy) Scan(ctx context.Context, v interface{}) error {
+func (agb *AttachmentGroupBy) Scan(ctx context.Context, v any) error {
 	query, err := agb.path(ctx)
 	if err != nil {
 		return err
@@ -617,7 +620,7 @@ func (agb *AttachmentGroupBy) Scan(ctx context.Context, v interface{}) error {
 	return agb.sqlScan(ctx, v)
 }
 
-func (agb *AttachmentGroupBy) sqlScan(ctx context.Context, v interface{}) error {
+func (agb *AttachmentGroupBy) sqlScan(ctx context.Context, v any) error {
 	for _, f := range agb.fields {
 		if !attachment.ValidColumn(f) {
 			return &ValidationError{Name: f, err: fmt.Errorf("invalid field %q for group-by", f)}
@@ -664,7 +667,7 @@ type AttachmentSelect struct {
 }
 
 // Scan applies the selector query and scans the result into the given value.
-func (as *AttachmentSelect) Scan(ctx context.Context, v interface{}) error {
+func (as *AttachmentSelect) Scan(ctx context.Context, v any) error {
 	if err := as.prepareQuery(ctx); err != nil {
 		return err
 	}
@@ -672,7 +675,7 @@ func (as *AttachmentSelect) Scan(ctx context.Context, v interface{}) error {
 	return as.sqlScan(ctx, v)
 }
 
-func (as *AttachmentSelect) sqlScan(ctx context.Context, v interface{}) error {
+func (as *AttachmentSelect) sqlScan(ctx context.Context, v any) error {
 	rows := &sql.Rows{}
 	query, args := as.sql.Query()
 	if err := as.driver.Query(ctx, query, args, rows); err != nil {
diff --git a/backend/ent/authtokens.go b/backend/ent/authtokens.go
index 24731d5..285412f 100644
--- a/backend/ent/authtokens.go
+++ b/backend/ent/authtokens.go
@@ -55,8 +55,8 @@ func (e AuthTokensEdges) UserOrErr() (*User, error) {
 }
 
 // scanValues returns the types for scanning values from sql.Rows.
-func (*AuthTokens) scanValues(columns []string) ([]interface{}, error) {
-	values := make([]interface{}, len(columns))
+func (*AuthTokens) scanValues(columns []string) ([]any, error) {
+	values := make([]any, len(columns))
 	for i := range columns {
 		switch columns[i] {
 		case authtokens.FieldToken:
@@ -76,7 +76,7 @@ func (*AuthTokens) scanValues(columns []string) ([]interface{}, error) {
 
 // assignValues assigns the values that were returned from sql.Rows (after scanning)
 // to the AuthTokens fields.
-func (at *AuthTokens) assignValues(columns []string, values []interface{}) error {
+func (at *AuthTokens) assignValues(columns []string, values []any) error {
 	if m, n := len(values), len(columns); m < n {
 		return fmt.Errorf("mismatch number of scan values: %d != %d", m, n)
 	}
diff --git a/backend/ent/authtokens/where.go b/backend/ent/authtokens/where.go
index edb237b..d54ebdd 100644
--- a/backend/ent/authtokens/where.go
+++ b/backend/ent/authtokens/where.go
@@ -35,7 +35,7 @@ func IDNEQ(id uuid.UUID) predicate.AuthTokens {
 // IDIn applies the In predicate on the ID field.
 func IDIn(ids ...uuid.UUID) predicate.AuthTokens {
 	return predicate.AuthTokens(func(s *sql.Selector) {
-		v := make([]interface{}, len(ids))
+		v := make([]any, len(ids))
 		for i := range v {
 			v[i] = ids[i]
 		}
@@ -46,7 +46,7 @@ func IDIn(ids ...uuid.UUID) predicate.AuthTokens {
 // IDNotIn applies the NotIn predicate on the ID field.
 func IDNotIn(ids ...uuid.UUID) predicate.AuthTokens {
 	return predicate.AuthTokens(func(s *sql.Selector) {
-		v := make([]interface{}, len(ids))
+		v := make([]any, len(ids))
 		for i := range v {
 			v[i] = ids[i]
 		}
@@ -126,7 +126,7 @@ func CreatedAtNEQ(v time.Time) predicate.AuthTokens {
 
 // CreatedAtIn applies the In predicate on the "created_at" field.
 func CreatedAtIn(vs ...time.Time) predicate.AuthTokens {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -137,7 +137,7 @@ func CreatedAtIn(vs ...time.Time) predicate.AuthTokens {
 
 // CreatedAtNotIn applies the NotIn predicate on the "created_at" field.
 func CreatedAtNotIn(vs ...time.Time) predicate.AuthTokens {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -190,7 +190,7 @@ func UpdatedAtNEQ(v time.Time) predicate.AuthTokens {
 
 // UpdatedAtIn applies the In predicate on the "updated_at" field.
 func UpdatedAtIn(vs ...time.Time) predicate.AuthTokens {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -201,7 +201,7 @@ func UpdatedAtIn(vs ...time.Time) predicate.AuthTokens {
 
 // UpdatedAtNotIn applies the NotIn predicate on the "updated_at" field.
 func UpdatedAtNotIn(vs ...time.Time) predicate.AuthTokens {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -254,7 +254,7 @@ func TokenNEQ(v []byte) predicate.AuthTokens {
 
 // TokenIn applies the In predicate on the "token" field.
 func TokenIn(vs ...[]byte) predicate.AuthTokens {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -265,7 +265,7 @@ func TokenIn(vs ...[]byte) predicate.AuthTokens {
 
 // TokenNotIn applies the NotIn predicate on the "token" field.
 func TokenNotIn(vs ...[]byte) predicate.AuthTokens {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -318,7 +318,7 @@ func ExpiresAtNEQ(v time.Time) predicate.AuthTokens {
 
 // ExpiresAtIn applies the In predicate on the "expires_at" field.
 func ExpiresAtIn(vs ...time.Time) predicate.AuthTokens {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -329,7 +329,7 @@ func ExpiresAtIn(vs ...time.Time) predicate.AuthTokens {
 
 // ExpiresAtNotIn applies the NotIn predicate on the "expires_at" field.
 func ExpiresAtNotIn(vs ...time.Time) predicate.AuthTokens {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
diff --git a/backend/ent/authtokens_query.go b/backend/ent/authtokens_query.go
index d1484e6..672a368 100644
--- a/backend/ent/authtokens_query.go
+++ b/backend/ent/authtokens_query.go
@@ -364,10 +364,10 @@ func (atq *AuthTokensQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*
 	if withFKs {
 		_spec.Node.Columns = append(_spec.Node.Columns, authtokens.ForeignKeys...)
 	}
-	_spec.ScanValues = func(columns []string) ([]interface{}, error) {
+	_spec.ScanValues = func(columns []string) ([]any, error) {
 		return (*AuthTokens).scanValues(nil, columns)
 	}
-	_spec.Assign = func(columns []string, values []interface{}) error {
+	_spec.Assign = func(columns []string, values []any) error {
 		node := &AuthTokens{config: atq.config}
 		nodes = append(nodes, node)
 		node.Edges.loadedTypes = loadedTypes
@@ -431,11 +431,14 @@ func (atq *AuthTokensQuery) sqlCount(ctx context.Context) (int, error) {
 }
 
 func (atq *AuthTokensQuery) sqlExist(ctx context.Context) (bool, error) {
-	n, err := atq.sqlCount(ctx)
-	if err != nil {
+	switch _, err := atq.FirstID(ctx); {
+	case IsNotFound(err):
+		return false, nil
+	case err != nil:
 		return false, fmt.Errorf("ent: check existence: %w", err)
+	default:
+		return true, nil
 	}
-	return n > 0, nil
 }
 
 func (atq *AuthTokensQuery) querySpec() *sqlgraph.QuerySpec {
@@ -536,7 +539,7 @@ func (atgb *AuthTokensGroupBy) Aggregate(fns ...AggregateFunc) *AuthTokensGroupB
 }
 
 // Scan applies the group-by query and scans the result into the given value.
-func (atgb *AuthTokensGroupBy) Scan(ctx context.Context, v interface{}) error {
+func (atgb *AuthTokensGroupBy) Scan(ctx context.Context, v any) error {
 	query, err := atgb.path(ctx)
 	if err != nil {
 		return err
@@ -545,7 +548,7 @@ func (atgb *AuthTokensGroupBy) Scan(ctx context.Context, v interface{}) error {
 	return atgb.sqlScan(ctx, v)
 }
 
-func (atgb *AuthTokensGroupBy) sqlScan(ctx context.Context, v interface{}) error {
+func (atgb *AuthTokensGroupBy) sqlScan(ctx context.Context, v any) error {
 	for _, f := range atgb.fields {
 		if !authtokens.ValidColumn(f) {
 			return &ValidationError{Name: f, err: fmt.Errorf("invalid field %q for group-by", f)}
@@ -592,7 +595,7 @@ type AuthTokensSelect struct {
 }
 
 // Scan applies the selector query and scans the result into the given value.
-func (ats *AuthTokensSelect) Scan(ctx context.Context, v interface{}) error {
+func (ats *AuthTokensSelect) Scan(ctx context.Context, v any) error {
 	if err := ats.prepareQuery(ctx); err != nil {
 		return err
 	}
@@ -600,7 +603,7 @@ func (ats *AuthTokensSelect) Scan(ctx context.Context, v interface{}) error {
 	return ats.sqlScan(ctx, v)
 }
 
-func (ats *AuthTokensSelect) sqlScan(ctx context.Context, v interface{}) error {
+func (ats *AuthTokensSelect) sqlScan(ctx context.Context, v any) error {
 	rows := &sql.Rows{}
 	query, args := ats.sql.Query()
 	if err := ats.driver.Query(ctx, query, args, rows); err != nil {
diff --git a/backend/ent/config.go b/backend/ent/config.go
index 8ae9829..11cf05c 100644
--- a/backend/ent/config.go
+++ b/backend/ent/config.go
@@ -17,7 +17,7 @@ type config struct {
 	// debug enable a debug logging.
 	debug bool
 	// log used for logging on debug mode.
-	log func(...interface{})
+	log func(...any)
 	// hooks to execute on mutations.
 	hooks *hooks
 }
@@ -54,7 +54,7 @@ func Debug() Option {
 }
 
 // Log sets the logging function for debug mode.
-func Log(fn func(...interface{})) Option {
+func Log(fn func(...any)) Option {
 	return func(c *config) {
 		c.log = fn
 	}
diff --git a/backend/ent/document.go b/backend/ent/document.go
index aef3bc2..bfc552e 100644
--- a/backend/ent/document.go
+++ b/backend/ent/document.go
@@ -77,8 +77,8 @@ func (e DocumentEdges) AttachmentsOrErr() ([]*Attachment, error) {
 }
 
 // scanValues returns the types for scanning values from sql.Rows.
-func (*Document) scanValues(columns []string) ([]interface{}, error) {
-	values := make([]interface{}, len(columns))
+func (*Document) scanValues(columns []string) ([]any, error) {
+	values := make([]any, len(columns))
 	for i := range columns {
 		switch columns[i] {
 		case document.FieldTitle, document.FieldPath:
@@ -98,7 +98,7 @@ func (*Document) scanValues(columns []string) ([]interface{}, error) {
 
 // assignValues assigns the values that were returned from sql.Rows (after scanning)
 // to the Document fields.
-func (d *Document) assignValues(columns []string, values []interface{}) error {
+func (d *Document) assignValues(columns []string, values []any) error {
 	if m, n := len(values), len(columns); m < n {
 		return fmt.Errorf("mismatch number of scan values: %d != %d", m, n)
 	}
diff --git a/backend/ent/document/where.go b/backend/ent/document/where.go
index c4efce5..0cb7139 100644
--- a/backend/ent/document/where.go
+++ b/backend/ent/document/where.go
@@ -35,7 +35,7 @@ func IDNEQ(id uuid.UUID) predicate.Document {
 // IDIn applies the In predicate on the ID field.
 func IDIn(ids ...uuid.UUID) predicate.Document {
 	return predicate.Document(func(s *sql.Selector) {
-		v := make([]interface{}, len(ids))
+		v := make([]any, len(ids))
 		for i := range v {
 			v[i] = ids[i]
 		}
@@ -46,7 +46,7 @@ func IDIn(ids ...uuid.UUID) predicate.Document {
 // IDNotIn applies the NotIn predicate on the ID field.
 func IDNotIn(ids ...uuid.UUID) predicate.Document {
 	return predicate.Document(func(s *sql.Selector) {
-		v := make([]interface{}, len(ids))
+		v := make([]any, len(ids))
 		for i := range v {
 			v[i] = ids[i]
 		}
@@ -126,7 +126,7 @@ func CreatedAtNEQ(v time.Time) predicate.Document {
 
 // CreatedAtIn applies the In predicate on the "created_at" field.
 func CreatedAtIn(vs ...time.Time) predicate.Document {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -137,7 +137,7 @@ func CreatedAtIn(vs ...time.Time) predicate.Document {
 
 // CreatedAtNotIn applies the NotIn predicate on the "created_at" field.
 func CreatedAtNotIn(vs ...time.Time) predicate.Document {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -190,7 +190,7 @@ func UpdatedAtNEQ(v time.Time) predicate.Document {
 
 // UpdatedAtIn applies the In predicate on the "updated_at" field.
 func UpdatedAtIn(vs ...time.Time) predicate.Document {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -201,7 +201,7 @@ func UpdatedAtIn(vs ...time.Time) predicate.Document {
 
 // UpdatedAtNotIn applies the NotIn predicate on the "updated_at" field.
 func UpdatedAtNotIn(vs ...time.Time) predicate.Document {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -254,7 +254,7 @@ func TitleNEQ(v string) predicate.Document {
 
 // TitleIn applies the In predicate on the "title" field.
 func TitleIn(vs ...string) predicate.Document {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -265,7 +265,7 @@ func TitleIn(vs ...string) predicate.Document {
 
 // TitleNotIn applies the NotIn predicate on the "title" field.
 func TitleNotIn(vs ...string) predicate.Document {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -353,7 +353,7 @@ func PathNEQ(v string) predicate.Document {
 
 // PathIn applies the In predicate on the "path" field.
 func PathIn(vs ...string) predicate.Document {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -364,7 +364,7 @@ func PathIn(vs ...string) predicate.Document {
 
 // PathNotIn applies the NotIn predicate on the "path" field.
 func PathNotIn(vs ...string) predicate.Document {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
diff --git a/backend/ent/document_query.go b/backend/ent/document_query.go
index 1f43079..fe439af 100644
--- a/backend/ent/document_query.go
+++ b/backend/ent/document_query.go
@@ -439,10 +439,10 @@ func (dq *DocumentQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*Doc
 	if withFKs {
 		_spec.Node.Columns = append(_spec.Node.Columns, document.ForeignKeys...)
 	}
-	_spec.ScanValues = func(columns []string) ([]interface{}, error) {
+	_spec.ScanValues = func(columns []string) ([]any, error) {
 		return (*Document).scanValues(nil, columns)
 	}
-	_spec.Assign = func(columns []string, values []interface{}) error {
+	_spec.Assign = func(columns []string, values []any) error {
 		node := &Document{config: dq.config}
 		nodes = append(nodes, node)
 		node.Edges.loadedTypes = loadedTypes
@@ -582,11 +582,14 @@ func (dq *DocumentQuery) sqlCount(ctx context.Context) (int, error) {
 }
 
 func (dq *DocumentQuery) sqlExist(ctx context.Context) (bool, error) {
-	n, err := dq.sqlCount(ctx)
-	if err != nil {
+	switch _, err := dq.FirstID(ctx); {
+	case IsNotFound(err):
+		return false, nil
+	case err != nil:
 		return false, fmt.Errorf("ent: check existence: %w", err)
+	default:
+		return true, nil
 	}
-	return n > 0, nil
 }
 
 func (dq *DocumentQuery) querySpec() *sqlgraph.QuerySpec {
@@ -687,7 +690,7 @@ func (dgb *DocumentGroupBy) Aggregate(fns ...AggregateFunc) *DocumentGroupBy {
 }
 
 // Scan applies the group-by query and scans the result into the given value.
-func (dgb *DocumentGroupBy) Scan(ctx context.Context, v interface{}) error {
+func (dgb *DocumentGroupBy) Scan(ctx context.Context, v any) error {
 	query, err := dgb.path(ctx)
 	if err != nil {
 		return err
@@ -696,7 +699,7 @@ func (dgb *DocumentGroupBy) Scan(ctx context.Context, v interface{}) error {
 	return dgb.sqlScan(ctx, v)
 }
 
-func (dgb *DocumentGroupBy) sqlScan(ctx context.Context, v interface{}) error {
+func (dgb *DocumentGroupBy) sqlScan(ctx context.Context, v any) error {
 	for _, f := range dgb.fields {
 		if !document.ValidColumn(f) {
 			return &ValidationError{Name: f, err: fmt.Errorf("invalid field %q for group-by", f)}
@@ -743,7 +746,7 @@ type DocumentSelect struct {
 }
 
 // Scan applies the selector query and scans the result into the given value.
-func (ds *DocumentSelect) Scan(ctx context.Context, v interface{}) error {
+func (ds *DocumentSelect) Scan(ctx context.Context, v any) error {
 	if err := ds.prepareQuery(ctx); err != nil {
 		return err
 	}
@@ -751,7 +754,7 @@ func (ds *DocumentSelect) Scan(ctx context.Context, v interface{}) error {
 	return ds.sqlScan(ctx, v)
 }
 
-func (ds *DocumentSelect) sqlScan(ctx context.Context, v interface{}) error {
+func (ds *DocumentSelect) sqlScan(ctx context.Context, v any) error {
 	rows := &sql.Rows{}
 	query, args := ds.sql.Query()
 	if err := ds.driver.Query(ctx, query, args, rows); err != nil {
diff --git a/backend/ent/documenttoken.go b/backend/ent/documenttoken.go
index c4de9a5..f42a40f 100644
--- a/backend/ent/documenttoken.go
+++ b/backend/ent/documenttoken.go
@@ -57,8 +57,8 @@ func (e DocumentTokenEdges) DocumentOrErr() (*Document, error) {
 }
 
 // scanValues returns the types for scanning values from sql.Rows.
-func (*DocumentToken) scanValues(columns []string) ([]interface{}, error) {
-	values := make([]interface{}, len(columns))
+func (*DocumentToken) scanValues(columns []string) ([]any, error) {
+	values := make([]any, len(columns))
 	for i := range columns {
 		switch columns[i] {
 		case documenttoken.FieldToken:
@@ -80,7 +80,7 @@ func (*DocumentToken) scanValues(columns []string) ([]interface{}, error) {
 
 // assignValues assigns the values that were returned from sql.Rows (after scanning)
 // to the DocumentToken fields.
-func (dt *DocumentToken) assignValues(columns []string, values []interface{}) error {
+func (dt *DocumentToken) assignValues(columns []string, values []any) error {
 	if m, n := len(values), len(columns); m < n {
 		return fmt.Errorf("mismatch number of scan values: %d != %d", m, n)
 	}
diff --git a/backend/ent/documenttoken/where.go b/backend/ent/documenttoken/where.go
index 9975a33..1d0949a 100644
--- a/backend/ent/documenttoken/where.go
+++ b/backend/ent/documenttoken/where.go
@@ -35,7 +35,7 @@ func IDNEQ(id uuid.UUID) predicate.DocumentToken {
 // IDIn applies the In predicate on the ID field.
 func IDIn(ids ...uuid.UUID) predicate.DocumentToken {
 	return predicate.DocumentToken(func(s *sql.Selector) {
-		v := make([]interface{}, len(ids))
+		v := make([]any, len(ids))
 		for i := range v {
 			v[i] = ids[i]
 		}
@@ -46,7 +46,7 @@ func IDIn(ids ...uuid.UUID) predicate.DocumentToken {
 // IDNotIn applies the NotIn predicate on the ID field.
 func IDNotIn(ids ...uuid.UUID) predicate.DocumentToken {
 	return predicate.DocumentToken(func(s *sql.Selector) {
-		v := make([]interface{}, len(ids))
+		v := make([]any, len(ids))
 		for i := range v {
 			v[i] = ids[i]
 		}
@@ -133,7 +133,7 @@ func CreatedAtNEQ(v time.Time) predicate.DocumentToken {
 
 // CreatedAtIn applies the In predicate on the "created_at" field.
 func CreatedAtIn(vs ...time.Time) predicate.DocumentToken {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -144,7 +144,7 @@ func CreatedAtIn(vs ...time.Time) predicate.DocumentToken {
 
 // CreatedAtNotIn applies the NotIn predicate on the "created_at" field.
 func CreatedAtNotIn(vs ...time.Time) predicate.DocumentToken {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -197,7 +197,7 @@ func UpdatedAtNEQ(v time.Time) predicate.DocumentToken {
 
 // UpdatedAtIn applies the In predicate on the "updated_at" field.
 func UpdatedAtIn(vs ...time.Time) predicate.DocumentToken {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -208,7 +208,7 @@ func UpdatedAtIn(vs ...time.Time) predicate.DocumentToken {
 
 // UpdatedAtNotIn applies the NotIn predicate on the "updated_at" field.
 func UpdatedAtNotIn(vs ...time.Time) predicate.DocumentToken {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -261,7 +261,7 @@ func TokenNEQ(v []byte) predicate.DocumentToken {
 
 // TokenIn applies the In predicate on the "token" field.
 func TokenIn(vs ...[]byte) predicate.DocumentToken {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -272,7 +272,7 @@ func TokenIn(vs ...[]byte) predicate.DocumentToken {
 
 // TokenNotIn applies the NotIn predicate on the "token" field.
 func TokenNotIn(vs ...[]byte) predicate.DocumentToken {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -325,7 +325,7 @@ func UsesNEQ(v int) predicate.DocumentToken {
 
 // UsesIn applies the In predicate on the "uses" field.
 func UsesIn(vs ...int) predicate.DocumentToken {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -336,7 +336,7 @@ func UsesIn(vs ...int) predicate.DocumentToken {
 
 // UsesNotIn applies the NotIn predicate on the "uses" field.
 func UsesNotIn(vs ...int) predicate.DocumentToken {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -389,7 +389,7 @@ func ExpiresAtNEQ(v time.Time) predicate.DocumentToken {
 
 // ExpiresAtIn applies the In predicate on the "expires_at" field.
 func ExpiresAtIn(vs ...time.Time) predicate.DocumentToken {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -400,7 +400,7 @@ func ExpiresAtIn(vs ...time.Time) predicate.DocumentToken {
 
 // ExpiresAtNotIn applies the NotIn predicate on the "expires_at" field.
 func ExpiresAtNotIn(vs ...time.Time) predicate.DocumentToken {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
diff --git a/backend/ent/documenttoken_query.go b/backend/ent/documenttoken_query.go
index f0c2198..a8f264e 100644
--- a/backend/ent/documenttoken_query.go
+++ b/backend/ent/documenttoken_query.go
@@ -364,10 +364,10 @@ func (dtq *DocumentTokenQuery) sqlAll(ctx context.Context, hooks ...queryHook) (
 	if withFKs {
 		_spec.Node.Columns = append(_spec.Node.Columns, documenttoken.ForeignKeys...)
 	}
-	_spec.ScanValues = func(columns []string) ([]interface{}, error) {
+	_spec.ScanValues = func(columns []string) ([]any, error) {
 		return (*DocumentToken).scanValues(nil, columns)
 	}
-	_spec.Assign = func(columns []string, values []interface{}) error {
+	_spec.Assign = func(columns []string, values []any) error {
 		node := &DocumentToken{config: dtq.config}
 		nodes = append(nodes, node)
 		node.Edges.loadedTypes = loadedTypes
@@ -431,11 +431,14 @@ func (dtq *DocumentTokenQuery) sqlCount(ctx context.Context) (int, error) {
 }
 
 func (dtq *DocumentTokenQuery) sqlExist(ctx context.Context) (bool, error) {
-	n, err := dtq.sqlCount(ctx)
-	if err != nil {
+	switch _, err := dtq.FirstID(ctx); {
+	case IsNotFound(err):
+		return false, nil
+	case err != nil:
 		return false, fmt.Errorf("ent: check existence: %w", err)
+	default:
+		return true, nil
 	}
-	return n > 0, nil
 }
 
 func (dtq *DocumentTokenQuery) querySpec() *sqlgraph.QuerySpec {
@@ -536,7 +539,7 @@ func (dtgb *DocumentTokenGroupBy) Aggregate(fns ...AggregateFunc) *DocumentToken
 }
 
 // Scan applies the group-by query and scans the result into the given value.
-func (dtgb *DocumentTokenGroupBy) Scan(ctx context.Context, v interface{}) error {
+func (dtgb *DocumentTokenGroupBy) Scan(ctx context.Context, v any) error {
 	query, err := dtgb.path(ctx)
 	if err != nil {
 		return err
@@ -545,7 +548,7 @@ func (dtgb *DocumentTokenGroupBy) Scan(ctx context.Context, v interface{}) error
 	return dtgb.sqlScan(ctx, v)
 }
 
-func (dtgb *DocumentTokenGroupBy) sqlScan(ctx context.Context, v interface{}) error {
+func (dtgb *DocumentTokenGroupBy) sqlScan(ctx context.Context, v any) error {
 	for _, f := range dtgb.fields {
 		if !documenttoken.ValidColumn(f) {
 			return &ValidationError{Name: f, err: fmt.Errorf("invalid field %q for group-by", f)}
@@ -592,7 +595,7 @@ type DocumentTokenSelect struct {
 }
 
 // Scan applies the selector query and scans the result into the given value.
-func (dts *DocumentTokenSelect) Scan(ctx context.Context, v interface{}) error {
+func (dts *DocumentTokenSelect) Scan(ctx context.Context, v any) error {
 	if err := dts.prepareQuery(ctx); err != nil {
 		return err
 	}
@@ -600,7 +603,7 @@ func (dts *DocumentTokenSelect) Scan(ctx context.Context, v interface{}) error {
 	return dts.sqlScan(ctx, v)
 }
 
-func (dts *DocumentTokenSelect) sqlScan(ctx context.Context, v interface{}) error {
+func (dts *DocumentTokenSelect) sqlScan(ctx context.Context, v any) error {
 	rows := &sql.Rows{}
 	query, args := dts.sql.Query()
 	if err := dts.driver.Query(ctx, query, args, rows); err != nil {
diff --git a/backend/ent/ent.go b/backend/ent/ent.go
index 0364759..f8f3348 100644
--- a/backend/ent/ent.go
+++ b/backend/ent/ent.go
@@ -281,11 +281,11 @@ func IsConstraintError(err error) bool {
 type selector struct {
 	label string
 	flds  *[]string
-	scan  func(context.Context, interface{}) error
+	scan  func(context.Context, any) error
 }
 
 // ScanX is like Scan, but panics if an error occurs.
-func (s *selector) ScanX(ctx context.Context, v interface{}) {
+func (s *selector) ScanX(ctx context.Context, v any) {
 	if err := s.scan(ctx, v); err != nil {
 		panic(err)
 	}
diff --git a/backend/ent/enttest/enttest.go b/backend/ent/enttest/enttest.go
index ee46d3d..f39fc09 100644
--- a/backend/ent/enttest/enttest.go
+++ b/backend/ent/enttest/enttest.go
@@ -18,7 +18,7 @@ type (
 	// testing.T and testing.B and used by enttest.
 	TestingT interface {
 		FailNow()
-		Error(...interface{})
+		Error(...any)
 	}
 
 	// Option configures client creation.
diff --git a/backend/ent/group.go b/backend/ent/group.go
index 65d956a..788382b 100644
--- a/backend/ent/group.go
+++ b/backend/ent/group.go
@@ -93,8 +93,8 @@ func (e GroupEdges) DocumentsOrErr() ([]*Document, error) {
 }
 
 // scanValues returns the types for scanning values from sql.Rows.
-func (*Group) scanValues(columns []string) ([]interface{}, error) {
-	values := make([]interface{}, len(columns))
+func (*Group) scanValues(columns []string) ([]any, error) {
+	values := make([]any, len(columns))
 	for i := range columns {
 		switch columns[i] {
 		case group.FieldName, group.FieldCurrency:
@@ -112,7 +112,7 @@ func (*Group) scanValues(columns []string) ([]interface{}, error) {
 
 // assignValues assigns the values that were returned from sql.Rows (after scanning)
 // to the Group fields.
-func (gr *Group) assignValues(columns []string, values []interface{}) error {
+func (gr *Group) assignValues(columns []string, values []any) error {
 	if m, n := len(values), len(columns); m < n {
 		return fmt.Errorf("mismatch number of scan values: %d != %d", m, n)
 	}
diff --git a/backend/ent/group/where.go b/backend/ent/group/where.go
index 04f7ec8..7c55e78 100644
--- a/backend/ent/group/where.go
+++ b/backend/ent/group/where.go
@@ -35,7 +35,7 @@ func IDNEQ(id uuid.UUID) predicate.Group {
 // IDIn applies the In predicate on the ID field.
 func IDIn(ids ...uuid.UUID) predicate.Group {
 	return predicate.Group(func(s *sql.Selector) {
-		v := make([]interface{}, len(ids))
+		v := make([]any, len(ids))
 		for i := range v {
 			v[i] = ids[i]
 		}
@@ -46,7 +46,7 @@ func IDIn(ids ...uuid.UUID) predicate.Group {
 // IDNotIn applies the NotIn predicate on the ID field.
 func IDNotIn(ids ...uuid.UUID) predicate.Group {
 	return predicate.Group(func(s *sql.Selector) {
-		v := make([]interface{}, len(ids))
+		v := make([]any, len(ids))
 		for i := range v {
 			v[i] = ids[i]
 		}
@@ -119,7 +119,7 @@ func CreatedAtNEQ(v time.Time) predicate.Group {
 
 // CreatedAtIn applies the In predicate on the "created_at" field.
 func CreatedAtIn(vs ...time.Time) predicate.Group {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -130,7 +130,7 @@ func CreatedAtIn(vs ...time.Time) predicate.Group {
 
 // CreatedAtNotIn applies the NotIn predicate on the "created_at" field.
 func CreatedAtNotIn(vs ...time.Time) predicate.Group {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -183,7 +183,7 @@ func UpdatedAtNEQ(v time.Time) predicate.Group {
 
 // UpdatedAtIn applies the In predicate on the "updated_at" field.
 func UpdatedAtIn(vs ...time.Time) predicate.Group {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -194,7 +194,7 @@ func UpdatedAtIn(vs ...time.Time) predicate.Group {
 
 // UpdatedAtNotIn applies the NotIn predicate on the "updated_at" field.
 func UpdatedAtNotIn(vs ...time.Time) predicate.Group {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -247,7 +247,7 @@ func NameNEQ(v string) predicate.Group {
 
 // NameIn applies the In predicate on the "name" field.
 func NameIn(vs ...string) predicate.Group {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -258,7 +258,7 @@ func NameIn(vs ...string) predicate.Group {
 
 // NameNotIn applies the NotIn predicate on the "name" field.
 func NameNotIn(vs ...string) predicate.Group {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -346,7 +346,7 @@ func CurrencyNEQ(v Currency) predicate.Group {
 
 // CurrencyIn applies the In predicate on the "currency" field.
 func CurrencyIn(vs ...Currency) predicate.Group {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -357,7 +357,7 @@ func CurrencyIn(vs ...Currency) predicate.Group {
 
 // CurrencyNotIn applies the NotIn predicate on the "currency" field.
 func CurrencyNotIn(vs ...Currency) predicate.Group {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
diff --git a/backend/ent/group_query.go b/backend/ent/group_query.go
index e82f725..1fc452d 100644
--- a/backend/ent/group_query.go
+++ b/backend/ent/group_query.go
@@ -505,10 +505,10 @@ func (gq *GroupQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*Group,
 			gq.withDocuments != nil,
 		}
 	)
-	_spec.ScanValues = func(columns []string) ([]interface{}, error) {
+	_spec.ScanValues = func(columns []string) ([]any, error) {
 		return (*Group).scanValues(nil, columns)
 	}
-	_spec.Assign = func(columns []string, values []interface{}) error {
+	_spec.Assign = func(columns []string, values []any) error {
 		node := &Group{config: gq.config}
 		nodes = append(nodes, node)
 		node.Edges.loadedTypes = loadedTypes
@@ -727,11 +727,14 @@ func (gq *GroupQuery) sqlCount(ctx context.Context) (int, error) {
 }
 
 func (gq *GroupQuery) sqlExist(ctx context.Context) (bool, error) {
-	n, err := gq.sqlCount(ctx)
-	if err != nil {
+	switch _, err := gq.FirstID(ctx); {
+	case IsNotFound(err):
+		return false, nil
+	case err != nil:
 		return false, fmt.Errorf("ent: check existence: %w", err)
+	default:
+		return true, nil
 	}
-	return n > 0, nil
 }
 
 func (gq *GroupQuery) querySpec() *sqlgraph.QuerySpec {
@@ -832,7 +835,7 @@ func (ggb *GroupGroupBy) Aggregate(fns ...AggregateFunc) *GroupGroupBy {
 }
 
 // Scan applies the group-by query and scans the result into the given value.
-func (ggb *GroupGroupBy) Scan(ctx context.Context, v interface{}) error {
+func (ggb *GroupGroupBy) Scan(ctx context.Context, v any) error {
 	query, err := ggb.path(ctx)
 	if err != nil {
 		return err
@@ -841,7 +844,7 @@ func (ggb *GroupGroupBy) Scan(ctx context.Context, v interface{}) error {
 	return ggb.sqlScan(ctx, v)
 }
 
-func (ggb *GroupGroupBy) sqlScan(ctx context.Context, v interface{}) error {
+func (ggb *GroupGroupBy) sqlScan(ctx context.Context, v any) error {
 	for _, f := range ggb.fields {
 		if !group.ValidColumn(f) {
 			return &ValidationError{Name: f, err: fmt.Errorf("invalid field %q for group-by", f)}
@@ -888,7 +891,7 @@ type GroupSelect struct {
 }
 
 // Scan applies the selector query and scans the result into the given value.
-func (gs *GroupSelect) Scan(ctx context.Context, v interface{}) error {
+func (gs *GroupSelect) Scan(ctx context.Context, v any) error {
 	if err := gs.prepareQuery(ctx); err != nil {
 		return err
 	}
@@ -896,7 +899,7 @@ func (gs *GroupSelect) Scan(ctx context.Context, v interface{}) error {
 	return gs.sqlScan(ctx, v)
 }
 
-func (gs *GroupSelect) sqlScan(ctx context.Context, v interface{}) error {
+func (gs *GroupSelect) sqlScan(ctx context.Context, v any) error {
 	rows := &sql.Rows{}
 	query, args := gs.sql.Query()
 	if err := gs.driver.Query(ctx, query, args, rows); err != nil {
diff --git a/backend/ent/item.go b/backend/ent/item.go
index b58cbd2..ccbfcc0 100644
--- a/backend/ent/item.go
+++ b/backend/ent/item.go
@@ -139,8 +139,8 @@ func (e ItemEdges) AttachmentsOrErr() ([]*Attachment, error) {
 }
 
 // scanValues returns the types for scanning values from sql.Rows.
-func (*Item) scanValues(columns []string) ([]interface{}, error) {
-	values := make([]interface{}, len(columns))
+func (*Item) scanValues(columns []string) ([]any, error) {
+	values := make([]any, len(columns))
 	for i := range columns {
 		switch columns[i] {
 		case item.FieldInsured, item.FieldLifetimeWarranty:
@@ -168,7 +168,7 @@ func (*Item) scanValues(columns []string) ([]interface{}, error) {
 
 // assignValues assigns the values that were returned from sql.Rows (after scanning)
 // to the Item fields.
-func (i *Item) assignValues(columns []string, values []interface{}) error {
+func (i *Item) assignValues(columns []string, values []any) error {
 	if m, n := len(values), len(columns); m < n {
 		return fmt.Errorf("mismatch number of scan values: %d != %d", m, n)
 	}
diff --git a/backend/ent/item/where.go b/backend/ent/item/where.go
index 6cec831..ca53d34 100644
--- a/backend/ent/item/where.go
+++ b/backend/ent/item/where.go
@@ -35,7 +35,7 @@ func IDNEQ(id uuid.UUID) predicate.Item {
 // IDIn applies the In predicate on the ID field.
 func IDIn(ids ...uuid.UUID) predicate.Item {
 	return predicate.Item(func(s *sql.Selector) {
-		v := make([]interface{}, len(ids))
+		v := make([]any, len(ids))
 		for i := range v {
 			v[i] = ids[i]
 		}
@@ -46,7 +46,7 @@ func IDIn(ids ...uuid.UUID) predicate.Item {
 // IDNotIn applies the NotIn predicate on the ID field.
 func IDNotIn(ids ...uuid.UUID) predicate.Item {
 	return predicate.Item(func(s *sql.Selector) {
-		v := make([]interface{}, len(ids))
+		v := make([]any, len(ids))
 		for i := range v {
 			v[i] = ids[i]
 		}
@@ -245,7 +245,7 @@ func CreatedAtNEQ(v time.Time) predicate.Item {
 
 // CreatedAtIn applies the In predicate on the "created_at" field.
 func CreatedAtIn(vs ...time.Time) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -256,7 +256,7 @@ func CreatedAtIn(vs ...time.Time) predicate.Item {
 
 // CreatedAtNotIn applies the NotIn predicate on the "created_at" field.
 func CreatedAtNotIn(vs ...time.Time) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -309,7 +309,7 @@ func UpdatedAtNEQ(v time.Time) predicate.Item {
 
 // UpdatedAtIn applies the In predicate on the "updated_at" field.
 func UpdatedAtIn(vs ...time.Time) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -320,7 +320,7 @@ func UpdatedAtIn(vs ...time.Time) predicate.Item {
 
 // UpdatedAtNotIn applies the NotIn predicate on the "updated_at" field.
 func UpdatedAtNotIn(vs ...time.Time) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -373,7 +373,7 @@ func NameNEQ(v string) predicate.Item {
 
 // NameIn applies the In predicate on the "name" field.
 func NameIn(vs ...string) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -384,7 +384,7 @@ func NameIn(vs ...string) predicate.Item {
 
 // NameNotIn applies the NotIn predicate on the "name" field.
 func NameNotIn(vs ...string) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -472,7 +472,7 @@ func DescriptionNEQ(v string) predicate.Item {
 
 // DescriptionIn applies the In predicate on the "description" field.
 func DescriptionIn(vs ...string) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -483,7 +483,7 @@ func DescriptionIn(vs ...string) predicate.Item {
 
 // DescriptionNotIn applies the NotIn predicate on the "description" field.
 func DescriptionNotIn(vs ...string) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -585,7 +585,7 @@ func ImportRefNEQ(v string) predicate.Item {
 
 // ImportRefIn applies the In predicate on the "import_ref" field.
 func ImportRefIn(vs ...string) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -596,7 +596,7 @@ func ImportRefIn(vs ...string) predicate.Item {
 
 // ImportRefNotIn applies the NotIn predicate on the "import_ref" field.
 func ImportRefNotIn(vs ...string) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -698,7 +698,7 @@ func NotesNEQ(v string) predicate.Item {
 
 // NotesIn applies the In predicate on the "notes" field.
 func NotesIn(vs ...string) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -709,7 +709,7 @@ func NotesIn(vs ...string) predicate.Item {
 
 // NotesNotIn applies the NotIn predicate on the "notes" field.
 func NotesNotIn(vs ...string) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -811,7 +811,7 @@ func QuantityNEQ(v int) predicate.Item {
 
 // QuantityIn applies the In predicate on the "quantity" field.
 func QuantityIn(vs ...int) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -822,7 +822,7 @@ func QuantityIn(vs ...int) predicate.Item {
 
 // QuantityNotIn applies the NotIn predicate on the "quantity" field.
 func QuantityNotIn(vs ...int) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -889,7 +889,7 @@ func SerialNumberNEQ(v string) predicate.Item {
 
 // SerialNumberIn applies the In predicate on the "serial_number" field.
 func SerialNumberIn(vs ...string) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -900,7 +900,7 @@ func SerialNumberIn(vs ...string) predicate.Item {
 
 // SerialNumberNotIn applies the NotIn predicate on the "serial_number" field.
 func SerialNumberNotIn(vs ...string) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -1002,7 +1002,7 @@ func ModelNumberNEQ(v string) predicate.Item {
 
 // ModelNumberIn applies the In predicate on the "model_number" field.
 func ModelNumberIn(vs ...string) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -1013,7 +1013,7 @@ func ModelNumberIn(vs ...string) predicate.Item {
 
 // ModelNumberNotIn applies the NotIn predicate on the "model_number" field.
 func ModelNumberNotIn(vs ...string) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -1115,7 +1115,7 @@ func ManufacturerNEQ(v string) predicate.Item {
 
 // ManufacturerIn applies the In predicate on the "manufacturer" field.
 func ManufacturerIn(vs ...string) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -1126,7 +1126,7 @@ func ManufacturerIn(vs ...string) predicate.Item {
 
 // ManufacturerNotIn applies the NotIn predicate on the "manufacturer" field.
 func ManufacturerNotIn(vs ...string) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -1242,7 +1242,7 @@ func WarrantyExpiresNEQ(v time.Time) predicate.Item {
 
 // WarrantyExpiresIn applies the In predicate on the "warranty_expires" field.
 func WarrantyExpiresIn(vs ...time.Time) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -1253,7 +1253,7 @@ func WarrantyExpiresIn(vs ...time.Time) predicate.Item {
 
 // WarrantyExpiresNotIn applies the NotIn predicate on the "warranty_expires" field.
 func WarrantyExpiresNotIn(vs ...time.Time) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -1320,7 +1320,7 @@ func WarrantyDetailsNEQ(v string) predicate.Item {
 
 // WarrantyDetailsIn applies the In predicate on the "warranty_details" field.
 func WarrantyDetailsIn(vs ...string) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -1331,7 +1331,7 @@ func WarrantyDetailsIn(vs ...string) predicate.Item {
 
 // WarrantyDetailsNotIn applies the NotIn predicate on the "warranty_details" field.
 func WarrantyDetailsNotIn(vs ...string) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -1433,7 +1433,7 @@ func PurchaseTimeNEQ(v time.Time) predicate.Item {
 
 // PurchaseTimeIn applies the In predicate on the "purchase_time" field.
 func PurchaseTimeIn(vs ...time.Time) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -1444,7 +1444,7 @@ func PurchaseTimeIn(vs ...time.Time) predicate.Item {
 
 // PurchaseTimeNotIn applies the NotIn predicate on the "purchase_time" field.
 func PurchaseTimeNotIn(vs ...time.Time) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -1511,7 +1511,7 @@ func PurchaseFromNEQ(v string) predicate.Item {
 
 // PurchaseFromIn applies the In predicate on the "purchase_from" field.
 func PurchaseFromIn(vs ...string) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -1522,7 +1522,7 @@ func PurchaseFromIn(vs ...string) predicate.Item {
 
 // PurchaseFromNotIn applies the NotIn predicate on the "purchase_from" field.
 func PurchaseFromNotIn(vs ...string) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -1624,7 +1624,7 @@ func PurchasePriceNEQ(v float64) predicate.Item {
 
 // PurchasePriceIn applies the In predicate on the "purchase_price" field.
 func PurchasePriceIn(vs ...float64) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -1635,7 +1635,7 @@ func PurchasePriceIn(vs ...float64) predicate.Item {
 
 // PurchasePriceNotIn applies the NotIn predicate on the "purchase_price" field.
 func PurchasePriceNotIn(vs ...float64) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -1688,7 +1688,7 @@ func SoldTimeNEQ(v time.Time) predicate.Item {
 
 // SoldTimeIn applies the In predicate on the "sold_time" field.
 func SoldTimeIn(vs ...time.Time) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -1699,7 +1699,7 @@ func SoldTimeIn(vs ...time.Time) predicate.Item {
 
 // SoldTimeNotIn applies the NotIn predicate on the "sold_time" field.
 func SoldTimeNotIn(vs ...time.Time) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -1766,7 +1766,7 @@ func SoldToNEQ(v string) predicate.Item {
 
 // SoldToIn applies the In predicate on the "sold_to" field.
 func SoldToIn(vs ...string) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -1777,7 +1777,7 @@ func SoldToIn(vs ...string) predicate.Item {
 
 // SoldToNotIn applies the NotIn predicate on the "sold_to" field.
 func SoldToNotIn(vs ...string) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -1879,7 +1879,7 @@ func SoldPriceNEQ(v float64) predicate.Item {
 
 // SoldPriceIn applies the In predicate on the "sold_price" field.
 func SoldPriceIn(vs ...float64) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -1890,7 +1890,7 @@ func SoldPriceIn(vs ...float64) predicate.Item {
 
 // SoldPriceNotIn applies the NotIn predicate on the "sold_price" field.
 func SoldPriceNotIn(vs ...float64) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -1943,7 +1943,7 @@ func SoldNotesNEQ(v string) predicate.Item {
 
 // SoldNotesIn applies the In predicate on the "sold_notes" field.
 func SoldNotesIn(vs ...string) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -1954,7 +1954,7 @@ func SoldNotesIn(vs ...string) predicate.Item {
 
 // SoldNotesNotIn applies the NotIn predicate on the "sold_notes" field.
 func SoldNotesNotIn(vs ...string) predicate.Item {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
diff --git a/backend/ent/item_query.go b/backend/ent/item_query.go
index 70ea7d4..69e15ba 100644
--- a/backend/ent/item_query.go
+++ b/backend/ent/item_query.go
@@ -513,10 +513,10 @@ func (iq *ItemQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*Item, e
 	if withFKs {
 		_spec.Node.Columns = append(_spec.Node.Columns, item.ForeignKeys...)
 	}
-	_spec.ScanValues = func(columns []string) ([]interface{}, error) {
+	_spec.ScanValues = func(columns []string) ([]any, error) {
 		return (*Item).scanValues(nil, columns)
 	}
-	_spec.Assign = func(columns []string, values []interface{}) error {
+	_spec.Assign = func(columns []string, values []any) error {
 		node := &Item{config: iq.config}
 		nodes = append(nodes, node)
 		node.Edges.loadedTypes = loadedTypes
@@ -682,14 +682,14 @@ func (iq *ItemQuery) loadLabel(ctx context.Context, query *LabelQuery, nodes []*
 	neighbors, err := query.sqlAll(ctx, func(_ context.Context, spec *sqlgraph.QuerySpec) {
 		assign := spec.Assign
 		values := spec.ScanValues
-		spec.ScanValues = func(columns []string) ([]interface{}, error) {
+		spec.ScanValues = func(columns []string) ([]any, error) {
 			values, err := values(columns[1:])
 			if err != nil {
 				return nil, err
 			}
-			return append([]interface{}{new(uuid.UUID)}, values...), nil
+			return append([]any{new(uuid.UUID)}, values...), nil
 		}
-		spec.Assign = func(columns []string, values []interface{}) error {
+		spec.Assign = func(columns []string, values []any) error {
 			outValue := *values[0].(*uuid.UUID)
 			inValue := *values[1].(*uuid.UUID)
 			if nids[inValue] == nil {
@@ -756,11 +756,14 @@ func (iq *ItemQuery) sqlCount(ctx context.Context) (int, error) {
 }
 
 func (iq *ItemQuery) sqlExist(ctx context.Context) (bool, error) {
-	n, err := iq.sqlCount(ctx)
-	if err != nil {
+	switch _, err := iq.FirstID(ctx); {
+	case IsNotFound(err):
+		return false, nil
+	case err != nil:
 		return false, fmt.Errorf("ent: check existence: %w", err)
+	default:
+		return true, nil
 	}
-	return n > 0, nil
 }
 
 func (iq *ItemQuery) querySpec() *sqlgraph.QuerySpec {
@@ -861,7 +864,7 @@ func (igb *ItemGroupBy) Aggregate(fns ...AggregateFunc) *ItemGroupBy {
 }
 
 // Scan applies the group-by query and scans the result into the given value.
-func (igb *ItemGroupBy) Scan(ctx context.Context, v interface{}) error {
+func (igb *ItemGroupBy) Scan(ctx context.Context, v any) error {
 	query, err := igb.path(ctx)
 	if err != nil {
 		return err
@@ -870,7 +873,7 @@ func (igb *ItemGroupBy) Scan(ctx context.Context, v interface{}) error {
 	return igb.sqlScan(ctx, v)
 }
 
-func (igb *ItemGroupBy) sqlScan(ctx context.Context, v interface{}) error {
+func (igb *ItemGroupBy) sqlScan(ctx context.Context, v any) error {
 	for _, f := range igb.fields {
 		if !item.ValidColumn(f) {
 			return &ValidationError{Name: f, err: fmt.Errorf("invalid field %q for group-by", f)}
@@ -917,7 +920,7 @@ type ItemSelect struct {
 }
 
 // Scan applies the selector query and scans the result into the given value.
-func (is *ItemSelect) Scan(ctx context.Context, v interface{}) error {
+func (is *ItemSelect) Scan(ctx context.Context, v any) error {
 	if err := is.prepareQuery(ctx); err != nil {
 		return err
 	}
@@ -925,7 +928,7 @@ func (is *ItemSelect) Scan(ctx context.Context, v interface{}) error {
 	return is.sqlScan(ctx, v)
 }
 
-func (is *ItemSelect) sqlScan(ctx context.Context, v interface{}) error {
+func (is *ItemSelect) sqlScan(ctx context.Context, v any) error {
 	rows := &sql.Rows{}
 	query, args := is.sql.Query()
 	if err := is.driver.Query(ctx, query, args, rows); err != nil {
diff --git a/backend/ent/itemfield.go b/backend/ent/itemfield.go
index d252ec9..84db86d 100644
--- a/backend/ent/itemfield.go
+++ b/backend/ent/itemfield.go
@@ -65,8 +65,8 @@ func (e ItemFieldEdges) ItemOrErr() (*Item, error) {
 }
 
 // scanValues returns the types for scanning values from sql.Rows.
-func (*ItemField) scanValues(columns []string) ([]interface{}, error) {
-	values := make([]interface{}, len(columns))
+func (*ItemField) scanValues(columns []string) ([]any, error) {
+	values := make([]any, len(columns))
 	for i := range columns {
 		switch columns[i] {
 		case itemfield.FieldBooleanValue:
@@ -90,7 +90,7 @@ func (*ItemField) scanValues(columns []string) ([]interface{}, error) {
 
 // assignValues assigns the values that were returned from sql.Rows (after scanning)
 // to the ItemField fields.
-func (_if *ItemField) assignValues(columns []string, values []interface{}) error {
+func (_if *ItemField) assignValues(columns []string, values []any) error {
 	if m, n := len(values), len(columns); m < n {
 		return fmt.Errorf("mismatch number of scan values: %d != %d", m, n)
 	}
diff --git a/backend/ent/itemfield/where.go b/backend/ent/itemfield/where.go
index ebe4b61..39c2734 100644
--- a/backend/ent/itemfield/where.go
+++ b/backend/ent/itemfield/where.go
@@ -35,7 +35,7 @@ func IDNEQ(id uuid.UUID) predicate.ItemField {
 // IDIn applies the In predicate on the ID field.
 func IDIn(ids ...uuid.UUID) predicate.ItemField {
 	return predicate.ItemField(func(s *sql.Selector) {
-		v := make([]interface{}, len(ids))
+		v := make([]any, len(ids))
 		for i := range v {
 			v[i] = ids[i]
 		}
@@ -46,7 +46,7 @@ func IDIn(ids ...uuid.UUID) predicate.ItemField {
 // IDNotIn applies the NotIn predicate on the ID field.
 func IDNotIn(ids ...uuid.UUID) predicate.ItemField {
 	return predicate.ItemField(func(s *sql.Selector) {
-		v := make([]interface{}, len(ids))
+		v := make([]any, len(ids))
 		for i := range v {
 			v[i] = ids[i]
 		}
@@ -154,7 +154,7 @@ func CreatedAtNEQ(v time.Time) predicate.ItemField {
 
 // CreatedAtIn applies the In predicate on the "created_at" field.
 func CreatedAtIn(vs ...time.Time) predicate.ItemField {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -165,7 +165,7 @@ func CreatedAtIn(vs ...time.Time) predicate.ItemField {
 
 // CreatedAtNotIn applies the NotIn predicate on the "created_at" field.
 func CreatedAtNotIn(vs ...time.Time) predicate.ItemField {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -218,7 +218,7 @@ func UpdatedAtNEQ(v time.Time) predicate.ItemField {
 
 // UpdatedAtIn applies the In predicate on the "updated_at" field.
 func UpdatedAtIn(vs ...time.Time) predicate.ItemField {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -229,7 +229,7 @@ func UpdatedAtIn(vs ...time.Time) predicate.ItemField {
 
 // UpdatedAtNotIn applies the NotIn predicate on the "updated_at" field.
 func UpdatedAtNotIn(vs ...time.Time) predicate.ItemField {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -282,7 +282,7 @@ func NameNEQ(v string) predicate.ItemField {
 
 // NameIn applies the In predicate on the "name" field.
 func NameIn(vs ...string) predicate.ItemField {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -293,7 +293,7 @@ func NameIn(vs ...string) predicate.ItemField {
 
 // NameNotIn applies the NotIn predicate on the "name" field.
 func NameNotIn(vs ...string) predicate.ItemField {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -381,7 +381,7 @@ func DescriptionNEQ(v string) predicate.ItemField {
 
 // DescriptionIn applies the In predicate on the "description" field.
 func DescriptionIn(vs ...string) predicate.ItemField {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -392,7 +392,7 @@ func DescriptionIn(vs ...string) predicate.ItemField {
 
 // DescriptionNotIn applies the NotIn predicate on the "description" field.
 func DescriptionNotIn(vs ...string) predicate.ItemField {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -494,7 +494,7 @@ func TypeNEQ(v Type) predicate.ItemField {
 
 // TypeIn applies the In predicate on the "type" field.
 func TypeIn(vs ...Type) predicate.ItemField {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -505,7 +505,7 @@ func TypeIn(vs ...Type) predicate.ItemField {
 
 // TypeNotIn applies the NotIn predicate on the "type" field.
 func TypeNotIn(vs ...Type) predicate.ItemField {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -530,7 +530,7 @@ func TextValueNEQ(v string) predicate.ItemField {
 
 // TextValueIn applies the In predicate on the "text_value" field.
 func TextValueIn(vs ...string) predicate.ItemField {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -541,7 +541,7 @@ func TextValueIn(vs ...string) predicate.ItemField {
 
 // TextValueNotIn applies the NotIn predicate on the "text_value" field.
 func TextValueNotIn(vs ...string) predicate.ItemField {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -643,7 +643,7 @@ func NumberValueNEQ(v int) predicate.ItemField {
 
 // NumberValueIn applies the In predicate on the "number_value" field.
 func NumberValueIn(vs ...int) predicate.ItemField {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -654,7 +654,7 @@ func NumberValueIn(vs ...int) predicate.ItemField {
 
 // NumberValueNotIn applies the NotIn predicate on the "number_value" field.
 func NumberValueNotIn(vs ...int) predicate.ItemField {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -735,7 +735,7 @@ func TimeValueNEQ(v time.Time) predicate.ItemField {
 
 // TimeValueIn applies the In predicate on the "time_value" field.
 func TimeValueIn(vs ...time.Time) predicate.ItemField {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -746,7 +746,7 @@ func TimeValueIn(vs ...time.Time) predicate.ItemField {
 
 // TimeValueNotIn applies the NotIn predicate on the "time_value" field.
 func TimeValueNotIn(vs ...time.Time) predicate.ItemField {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
diff --git a/backend/ent/itemfield_query.go b/backend/ent/itemfield_query.go
index ac1b9e3..c72441e 100644
--- a/backend/ent/itemfield_query.go
+++ b/backend/ent/itemfield_query.go
@@ -364,10 +364,10 @@ func (ifq *ItemFieldQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*I
 	if withFKs {
 		_spec.Node.Columns = append(_spec.Node.Columns, itemfield.ForeignKeys...)
 	}
-	_spec.ScanValues = func(columns []string) ([]interface{}, error) {
+	_spec.ScanValues = func(columns []string) ([]any, error) {
 		return (*ItemField).scanValues(nil, columns)
 	}
-	_spec.Assign = func(columns []string, values []interface{}) error {
+	_spec.Assign = func(columns []string, values []any) error {
 		node := &ItemField{config: ifq.config}
 		nodes = append(nodes, node)
 		node.Edges.loadedTypes = loadedTypes
@@ -431,11 +431,14 @@ func (ifq *ItemFieldQuery) sqlCount(ctx context.Context) (int, error) {
 }
 
 func (ifq *ItemFieldQuery) sqlExist(ctx context.Context) (bool, error) {
-	n, err := ifq.sqlCount(ctx)
-	if err != nil {
+	switch _, err := ifq.FirstID(ctx); {
+	case IsNotFound(err):
+		return false, nil
+	case err != nil:
 		return false, fmt.Errorf("ent: check existence: %w", err)
+	default:
+		return true, nil
 	}
-	return n > 0, nil
 }
 
 func (ifq *ItemFieldQuery) querySpec() *sqlgraph.QuerySpec {
@@ -536,7 +539,7 @@ func (ifgb *ItemFieldGroupBy) Aggregate(fns ...AggregateFunc) *ItemFieldGroupBy
 }
 
 // Scan applies the group-by query and scans the result into the given value.
-func (ifgb *ItemFieldGroupBy) Scan(ctx context.Context, v interface{}) error {
+func (ifgb *ItemFieldGroupBy) Scan(ctx context.Context, v any) error {
 	query, err := ifgb.path(ctx)
 	if err != nil {
 		return err
@@ -545,7 +548,7 @@ func (ifgb *ItemFieldGroupBy) Scan(ctx context.Context, v interface{}) error {
 	return ifgb.sqlScan(ctx, v)
 }
 
-func (ifgb *ItemFieldGroupBy) sqlScan(ctx context.Context, v interface{}) error {
+func (ifgb *ItemFieldGroupBy) sqlScan(ctx context.Context, v any) error {
 	for _, f := range ifgb.fields {
 		if !itemfield.ValidColumn(f) {
 			return &ValidationError{Name: f, err: fmt.Errorf("invalid field %q for group-by", f)}
@@ -592,7 +595,7 @@ type ItemFieldSelect struct {
 }
 
 // Scan applies the selector query and scans the result into the given value.
-func (ifs *ItemFieldSelect) Scan(ctx context.Context, v interface{}) error {
+func (ifs *ItemFieldSelect) Scan(ctx context.Context, v any) error {
 	if err := ifs.prepareQuery(ctx); err != nil {
 		return err
 	}
@@ -600,7 +603,7 @@ func (ifs *ItemFieldSelect) Scan(ctx context.Context, v interface{}) error {
 	return ifs.sqlScan(ctx, v)
 }
 
-func (ifs *ItemFieldSelect) sqlScan(ctx context.Context, v interface{}) error {
+func (ifs *ItemFieldSelect) sqlScan(ctx context.Context, v any) error {
 	rows := &sql.Rows{}
 	query, args := ifs.sql.Query()
 	if err := ifs.driver.Query(ctx, query, args, rows); err != nil {
diff --git a/backend/ent/label.go b/backend/ent/label.go
index 39420f4..73e0714 100644
--- a/backend/ent/label.go
+++ b/backend/ent/label.go
@@ -68,8 +68,8 @@ func (e LabelEdges) ItemsOrErr() ([]*Item, error) {
 }
 
 // scanValues returns the types for scanning values from sql.Rows.
-func (*Label) scanValues(columns []string) ([]interface{}, error) {
-	values := make([]interface{}, len(columns))
+func (*Label) scanValues(columns []string) ([]any, error) {
+	values := make([]any, len(columns))
 	for i := range columns {
 		switch columns[i] {
 		case label.FieldName, label.FieldDescription, label.FieldColor:
@@ -89,7 +89,7 @@ func (*Label) scanValues(columns []string) ([]interface{}, error) {
 
 // assignValues assigns the values that were returned from sql.Rows (after scanning)
 // to the Label fields.
-func (l *Label) assignValues(columns []string, values []interface{}) error {
+func (l *Label) assignValues(columns []string, values []any) error {
 	if m, n := len(values), len(columns); m < n {
 		return fmt.Errorf("mismatch number of scan values: %d != %d", m, n)
 	}
diff --git a/backend/ent/label/where.go b/backend/ent/label/where.go
index e01eea7..05d24db 100644
--- a/backend/ent/label/where.go
+++ b/backend/ent/label/where.go
@@ -35,7 +35,7 @@ func IDNEQ(id uuid.UUID) predicate.Label {
 // IDIn applies the In predicate on the ID field.
 func IDIn(ids ...uuid.UUID) predicate.Label {
 	return predicate.Label(func(s *sql.Selector) {
-		v := make([]interface{}, len(ids))
+		v := make([]any, len(ids))
 		for i := range v {
 			v[i] = ids[i]
 		}
@@ -46,7 +46,7 @@ func IDIn(ids ...uuid.UUID) predicate.Label {
 // IDNotIn applies the NotIn predicate on the ID field.
 func IDNotIn(ids ...uuid.UUID) predicate.Label {
 	return predicate.Label(func(s *sql.Selector) {
-		v := make([]interface{}, len(ids))
+		v := make([]any, len(ids))
 		for i := range v {
 			v[i] = ids[i]
 		}
@@ -133,7 +133,7 @@ func CreatedAtNEQ(v time.Time) predicate.Label {
 
 // CreatedAtIn applies the In predicate on the "created_at" field.
 func CreatedAtIn(vs ...time.Time) predicate.Label {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -144,7 +144,7 @@ func CreatedAtIn(vs ...time.Time) predicate.Label {
 
 // CreatedAtNotIn applies the NotIn predicate on the "created_at" field.
 func CreatedAtNotIn(vs ...time.Time) predicate.Label {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -197,7 +197,7 @@ func UpdatedAtNEQ(v time.Time) predicate.Label {
 
 // UpdatedAtIn applies the In predicate on the "updated_at" field.
 func UpdatedAtIn(vs ...time.Time) predicate.Label {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -208,7 +208,7 @@ func UpdatedAtIn(vs ...time.Time) predicate.Label {
 
 // UpdatedAtNotIn applies the NotIn predicate on the "updated_at" field.
 func UpdatedAtNotIn(vs ...time.Time) predicate.Label {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -261,7 +261,7 @@ func NameNEQ(v string) predicate.Label {
 
 // NameIn applies the In predicate on the "name" field.
 func NameIn(vs ...string) predicate.Label {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -272,7 +272,7 @@ func NameIn(vs ...string) predicate.Label {
 
 // NameNotIn applies the NotIn predicate on the "name" field.
 func NameNotIn(vs ...string) predicate.Label {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -360,7 +360,7 @@ func DescriptionNEQ(v string) predicate.Label {
 
 // DescriptionIn applies the In predicate on the "description" field.
 func DescriptionIn(vs ...string) predicate.Label {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -371,7 +371,7 @@ func DescriptionIn(vs ...string) predicate.Label {
 
 // DescriptionNotIn applies the NotIn predicate on the "description" field.
 func DescriptionNotIn(vs ...string) predicate.Label {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -473,7 +473,7 @@ func ColorNEQ(v string) predicate.Label {
 
 // ColorIn applies the In predicate on the "color" field.
 func ColorIn(vs ...string) predicate.Label {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -484,7 +484,7 @@ func ColorIn(vs ...string) predicate.Label {
 
 // ColorNotIn applies the NotIn predicate on the "color" field.
 func ColorNotIn(vs ...string) predicate.Label {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
diff --git a/backend/ent/label_query.go b/backend/ent/label_query.go
index 80b4af5..58fa534 100644
--- a/backend/ent/label_query.go
+++ b/backend/ent/label_query.go
@@ -402,10 +402,10 @@ func (lq *LabelQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*Label,
 	if withFKs {
 		_spec.Node.Columns = append(_spec.Node.Columns, label.ForeignKeys...)
 	}
-	_spec.ScanValues = func(columns []string) ([]interface{}, error) {
+	_spec.ScanValues = func(columns []string) ([]any, error) {
 		return (*Label).scanValues(nil, columns)
 	}
-	_spec.Assign = func(columns []string, values []interface{}) error {
+	_spec.Assign = func(columns []string, values []any) error {
 		node := &Label{config: lq.config}
 		nodes = append(nodes, node)
 		node.Edges.loadedTypes = loadedTypes
@@ -491,14 +491,14 @@ func (lq *LabelQuery) loadItems(ctx context.Context, query *ItemQuery, nodes []*
 	neighbors, err := query.sqlAll(ctx, func(_ context.Context, spec *sqlgraph.QuerySpec) {
 		assign := spec.Assign
 		values := spec.ScanValues
-		spec.ScanValues = func(columns []string) ([]interface{}, error) {
+		spec.ScanValues = func(columns []string) ([]any, error) {
 			values, err := values(columns[1:])
 			if err != nil {
 				return nil, err
 			}
-			return append([]interface{}{new(uuid.UUID)}, values...), nil
+			return append([]any{new(uuid.UUID)}, values...), nil
 		}
-		spec.Assign = func(columns []string, values []interface{}) error {
+		spec.Assign = func(columns []string, values []any) error {
 			outValue := *values[0].(*uuid.UUID)
 			inValue := *values[1].(*uuid.UUID)
 			if nids[inValue] == nil {
@@ -534,11 +534,14 @@ func (lq *LabelQuery) sqlCount(ctx context.Context) (int, error) {
 }
 
 func (lq *LabelQuery) sqlExist(ctx context.Context) (bool, error) {
-	n, err := lq.sqlCount(ctx)
-	if err != nil {
+	switch _, err := lq.FirstID(ctx); {
+	case IsNotFound(err):
+		return false, nil
+	case err != nil:
 		return false, fmt.Errorf("ent: check existence: %w", err)
+	default:
+		return true, nil
 	}
-	return n > 0, nil
 }
 
 func (lq *LabelQuery) querySpec() *sqlgraph.QuerySpec {
@@ -639,7 +642,7 @@ func (lgb *LabelGroupBy) Aggregate(fns ...AggregateFunc) *LabelGroupBy {
 }
 
 // Scan applies the group-by query and scans the result into the given value.
-func (lgb *LabelGroupBy) Scan(ctx context.Context, v interface{}) error {
+func (lgb *LabelGroupBy) Scan(ctx context.Context, v any) error {
 	query, err := lgb.path(ctx)
 	if err != nil {
 		return err
@@ -648,7 +651,7 @@ func (lgb *LabelGroupBy) Scan(ctx context.Context, v interface{}) error {
 	return lgb.sqlScan(ctx, v)
 }
 
-func (lgb *LabelGroupBy) sqlScan(ctx context.Context, v interface{}) error {
+func (lgb *LabelGroupBy) sqlScan(ctx context.Context, v any) error {
 	for _, f := range lgb.fields {
 		if !label.ValidColumn(f) {
 			return &ValidationError{Name: f, err: fmt.Errorf("invalid field %q for group-by", f)}
@@ -695,7 +698,7 @@ type LabelSelect struct {
 }
 
 // Scan applies the selector query and scans the result into the given value.
-func (ls *LabelSelect) Scan(ctx context.Context, v interface{}) error {
+func (ls *LabelSelect) Scan(ctx context.Context, v any) error {
 	if err := ls.prepareQuery(ctx); err != nil {
 		return err
 	}
@@ -703,7 +706,7 @@ func (ls *LabelSelect) Scan(ctx context.Context, v interface{}) error {
 	return ls.sqlScan(ctx, v)
 }
 
-func (ls *LabelSelect) sqlScan(ctx context.Context, v interface{}) error {
+func (ls *LabelSelect) sqlScan(ctx context.Context, v any) error {
 	rows := &sql.Rows{}
 	query, args := ls.sql.Query()
 	if err := ls.driver.Query(ctx, query, args, rows); err != nil {
diff --git a/backend/ent/location.go b/backend/ent/location.go
index e0c9517..85b0b16 100644
--- a/backend/ent/location.go
+++ b/backend/ent/location.go
@@ -66,8 +66,8 @@ func (e LocationEdges) ItemsOrErr() ([]*Item, error) {
 }
 
 // scanValues returns the types for scanning values from sql.Rows.
-func (*Location) scanValues(columns []string) ([]interface{}, error) {
-	values := make([]interface{}, len(columns))
+func (*Location) scanValues(columns []string) ([]any, error) {
+	values := make([]any, len(columns))
 	for i := range columns {
 		switch columns[i] {
 		case location.FieldName, location.FieldDescription:
@@ -87,7 +87,7 @@ func (*Location) scanValues(columns []string) ([]interface{}, error) {
 
 // assignValues assigns the values that were returned from sql.Rows (after scanning)
 // to the Location fields.
-func (l *Location) assignValues(columns []string, values []interface{}) error {
+func (l *Location) assignValues(columns []string, values []any) error {
 	if m, n := len(values), len(columns); m < n {
 		return fmt.Errorf("mismatch number of scan values: %d != %d", m, n)
 	}
diff --git a/backend/ent/location/where.go b/backend/ent/location/where.go
index f72c16d..819c893 100644
--- a/backend/ent/location/where.go
+++ b/backend/ent/location/where.go
@@ -35,7 +35,7 @@ func IDNEQ(id uuid.UUID) predicate.Location {
 // IDIn applies the In predicate on the ID field.
 func IDIn(ids ...uuid.UUID) predicate.Location {
 	return predicate.Location(func(s *sql.Selector) {
-		v := make([]interface{}, len(ids))
+		v := make([]any, len(ids))
 		for i := range v {
 			v[i] = ids[i]
 		}
@@ -46,7 +46,7 @@ func IDIn(ids ...uuid.UUID) predicate.Location {
 // IDNotIn applies the NotIn predicate on the ID field.
 func IDNotIn(ids ...uuid.UUID) predicate.Location {
 	return predicate.Location(func(s *sql.Selector) {
-		v := make([]interface{}, len(ids))
+		v := make([]any, len(ids))
 		for i := range v {
 			v[i] = ids[i]
 		}
@@ -126,7 +126,7 @@ func CreatedAtNEQ(v time.Time) predicate.Location {
 
 // CreatedAtIn applies the In predicate on the "created_at" field.
 func CreatedAtIn(vs ...time.Time) predicate.Location {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -137,7 +137,7 @@ func CreatedAtIn(vs ...time.Time) predicate.Location {
 
 // CreatedAtNotIn applies the NotIn predicate on the "created_at" field.
 func CreatedAtNotIn(vs ...time.Time) predicate.Location {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -190,7 +190,7 @@ func UpdatedAtNEQ(v time.Time) predicate.Location {
 
 // UpdatedAtIn applies the In predicate on the "updated_at" field.
 func UpdatedAtIn(vs ...time.Time) predicate.Location {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -201,7 +201,7 @@ func UpdatedAtIn(vs ...time.Time) predicate.Location {
 
 // UpdatedAtNotIn applies the NotIn predicate on the "updated_at" field.
 func UpdatedAtNotIn(vs ...time.Time) predicate.Location {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -254,7 +254,7 @@ func NameNEQ(v string) predicate.Location {
 
 // NameIn applies the In predicate on the "name" field.
 func NameIn(vs ...string) predicate.Location {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -265,7 +265,7 @@ func NameIn(vs ...string) predicate.Location {
 
 // NameNotIn applies the NotIn predicate on the "name" field.
 func NameNotIn(vs ...string) predicate.Location {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -353,7 +353,7 @@ func DescriptionNEQ(v string) predicate.Location {
 
 // DescriptionIn applies the In predicate on the "description" field.
 func DescriptionIn(vs ...string) predicate.Location {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -364,7 +364,7 @@ func DescriptionIn(vs ...string) predicate.Location {
 
 // DescriptionNotIn applies the NotIn predicate on the "description" field.
 func DescriptionNotIn(vs ...string) predicate.Location {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
diff --git a/backend/ent/location_query.go b/backend/ent/location_query.go
index 5edd2d2..0097cb5 100644
--- a/backend/ent/location_query.go
+++ b/backend/ent/location_query.go
@@ -402,10 +402,10 @@ func (lq *LocationQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*Loc
 	if withFKs {
 		_spec.Node.Columns = append(_spec.Node.Columns, location.ForeignKeys...)
 	}
-	_spec.ScanValues = func(columns []string) ([]interface{}, error) {
+	_spec.ScanValues = func(columns []string) ([]any, error) {
 		return (*Location).scanValues(nil, columns)
 	}
-	_spec.Assign = func(columns []string, values []interface{}) error {
+	_spec.Assign = func(columns []string, values []any) error {
 		node := &Location{config: lq.config}
 		nodes = append(nodes, node)
 		node.Edges.loadedTypes = loadedTypes
@@ -507,11 +507,14 @@ func (lq *LocationQuery) sqlCount(ctx context.Context) (int, error) {
 }
 
 func (lq *LocationQuery) sqlExist(ctx context.Context) (bool, error) {
-	n, err := lq.sqlCount(ctx)
-	if err != nil {
+	switch _, err := lq.FirstID(ctx); {
+	case IsNotFound(err):
+		return false, nil
+	case err != nil:
 		return false, fmt.Errorf("ent: check existence: %w", err)
+	default:
+		return true, nil
 	}
-	return n > 0, nil
 }
 
 func (lq *LocationQuery) querySpec() *sqlgraph.QuerySpec {
@@ -612,7 +615,7 @@ func (lgb *LocationGroupBy) Aggregate(fns ...AggregateFunc) *LocationGroupBy {
 }
 
 // Scan applies the group-by query and scans the result into the given value.
-func (lgb *LocationGroupBy) Scan(ctx context.Context, v interface{}) error {
+func (lgb *LocationGroupBy) Scan(ctx context.Context, v any) error {
 	query, err := lgb.path(ctx)
 	if err != nil {
 		return err
@@ -621,7 +624,7 @@ func (lgb *LocationGroupBy) Scan(ctx context.Context, v interface{}) error {
 	return lgb.sqlScan(ctx, v)
 }
 
-func (lgb *LocationGroupBy) sqlScan(ctx context.Context, v interface{}) error {
+func (lgb *LocationGroupBy) sqlScan(ctx context.Context, v any) error {
 	for _, f := range lgb.fields {
 		if !location.ValidColumn(f) {
 			return &ValidationError{Name: f, err: fmt.Errorf("invalid field %q for group-by", f)}
@@ -668,7 +671,7 @@ type LocationSelect struct {
 }
 
 // Scan applies the selector query and scans the result into the given value.
-func (ls *LocationSelect) Scan(ctx context.Context, v interface{}) error {
+func (ls *LocationSelect) Scan(ctx context.Context, v any) error {
 	if err := ls.prepareQuery(ctx); err != nil {
 		return err
 	}
@@ -676,7 +679,7 @@ func (ls *LocationSelect) Scan(ctx context.Context, v interface{}) error {
 	return ls.sqlScan(ctx, v)
 }
 
-func (ls *LocationSelect) sqlScan(ctx context.Context, v interface{}) error {
+func (ls *LocationSelect) sqlScan(ctx context.Context, v any) error {
 	rows := &sql.Rows{}
 	query, args := ls.sql.Query()
 	if err := ls.driver.Query(ctx, query, args, rows); err != nil {
diff --git a/backend/ent/mutation.go b/backend/ent/mutation.go
index bbd71a5..54ccac5 100644
--- a/backend/ent/mutation.go
+++ b/backend/ent/mutation.go
@@ -542,8 +542,6 @@ func (m *AttachmentMutation) RemovedEdges() []string {
 // RemovedIDs returns all IDs (to other nodes) that were removed for the edge with
 // the given name in this mutation.
 func (m *AttachmentMutation) RemovedIDs(name string) []ent.Value {
-	switch name {
-	}
 	return nil
 }
 
@@ -1101,8 +1099,6 @@ func (m *AuthTokensMutation) RemovedEdges() []string {
 // RemovedIDs returns all IDs (to other nodes) that were removed for the edge with
 // the given name in this mutation.
 func (m *AuthTokensMutation) RemovedIDs(name string) []ent.Value {
-	switch name {
-	}
 	return nil
 }
 
@@ -2453,8 +2449,6 @@ func (m *DocumentTokenMutation) RemovedEdges() []string {
 // RemovedIDs returns all IDs (to other nodes) that were removed for the edge with
 // the given name in this mutation.
 func (m *DocumentTokenMutation) RemovedIDs(name string) []ent.Value {
-	switch name {
-	}
 	return nil
 }
 
@@ -6398,8 +6392,6 @@ func (m *ItemFieldMutation) RemovedEdges() []string {
 // RemovedIDs returns all IDs (to other nodes) that were removed for the edge with
 // the given name in this mutation.
 func (m *ItemFieldMutation) RemovedIDs(name string) []ent.Value {
-	switch name {
-	}
 	return nil
 }
 
diff --git a/backend/ent/runtime/runtime.go b/backend/ent/runtime/runtime.go
index e0a5718..8dd480b 100644
--- a/backend/ent/runtime/runtime.go
+++ b/backend/ent/runtime/runtime.go
@@ -5,6 +5,6 @@ package runtime
 // The schema-stitching logic is generated in github.com/hay-kot/homebox/backend/ent/runtime.go
 
 const (
-	Version = "v0.11.2"                                         // Version of ent codegen.
-	Sum     = "h1:UM2/BUhF2FfsxPHRxLjQbhqJNaDdVlOwNIAMLs2jyto=" // Sum of ent codegen.
+	Version = "v0.11.3"                                         // Version of ent codegen.
+	Sum     = "h1:F5FBGAWiDCGder7YT+lqMnyzXl6d0xU3xMBM/SO3CMc=" // Sum of ent codegen.
 )
diff --git a/backend/ent/tx.go b/backend/ent/tx.go
index b062e19..3dc6db8 100644
--- a/backend/ent/tx.go
+++ b/backend/ent/tx.go
@@ -225,12 +225,12 @@ func (*txDriver) Commit() error { return nil }
 func (*txDriver) Rollback() error { return nil }
 
 // Exec calls tx.Exec.
-func (tx *txDriver) Exec(ctx context.Context, query string, args, v interface{}) error {
+func (tx *txDriver) Exec(ctx context.Context, query string, args, v any) error {
 	return tx.tx.Exec(ctx, query, args, v)
 }
 
 // Query calls tx.Query.
-func (tx *txDriver) Query(ctx context.Context, query string, args, v interface{}) error {
+func (tx *txDriver) Query(ctx context.Context, query string, args, v any) error {
 	return tx.tx.Query(ctx, query, args, v)
 }
 
diff --git a/backend/ent/user.go b/backend/ent/user.go
index ff21fa1..ffe33a4 100644
--- a/backend/ent/user.go
+++ b/backend/ent/user.go
@@ -70,8 +70,8 @@ func (e UserEdges) AuthTokensOrErr() ([]*AuthTokens, error) {
 }
 
 // scanValues returns the types for scanning values from sql.Rows.
-func (*User) scanValues(columns []string) ([]interface{}, error) {
-	values := make([]interface{}, len(columns))
+func (*User) scanValues(columns []string) ([]any, error) {
+	values := make([]any, len(columns))
 	for i := range columns {
 		switch columns[i] {
 		case user.FieldIsSuperuser:
@@ -93,7 +93,7 @@ func (*User) scanValues(columns []string) ([]interface{}, error) {
 
 // assignValues assigns the values that were returned from sql.Rows (after scanning)
 // to the User fields.
-func (u *User) assignValues(columns []string, values []interface{}) error {
+func (u *User) assignValues(columns []string, values []any) error {
 	if m, n := len(values), len(columns); m < n {
 		return fmt.Errorf("mismatch number of scan values: %d != %d", m, n)
 	}
diff --git a/backend/ent/user/where.go b/backend/ent/user/where.go
index d020d3b..7288a41 100644
--- a/backend/ent/user/where.go
+++ b/backend/ent/user/where.go
@@ -35,7 +35,7 @@ func IDNEQ(id uuid.UUID) predicate.User {
 // IDIn applies the In predicate on the ID field.
 func IDIn(ids ...uuid.UUID) predicate.User {
 	return predicate.User(func(s *sql.Selector) {
-		v := make([]interface{}, len(ids))
+		v := make([]any, len(ids))
 		for i := range v {
 			v[i] = ids[i]
 		}
@@ -46,7 +46,7 @@ func IDIn(ids ...uuid.UUID) predicate.User {
 // IDNotIn applies the NotIn predicate on the ID field.
 func IDNotIn(ids ...uuid.UUID) predicate.User {
 	return predicate.User(func(s *sql.Selector) {
-		v := make([]interface{}, len(ids))
+		v := make([]any, len(ids))
 		for i := range v {
 			v[i] = ids[i]
 		}
@@ -140,7 +140,7 @@ func CreatedAtNEQ(v time.Time) predicate.User {
 
 // CreatedAtIn applies the In predicate on the "created_at" field.
 func CreatedAtIn(vs ...time.Time) predicate.User {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -151,7 +151,7 @@ func CreatedAtIn(vs ...time.Time) predicate.User {
 
 // CreatedAtNotIn applies the NotIn predicate on the "created_at" field.
 func CreatedAtNotIn(vs ...time.Time) predicate.User {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -204,7 +204,7 @@ func UpdatedAtNEQ(v time.Time) predicate.User {
 
 // UpdatedAtIn applies the In predicate on the "updated_at" field.
 func UpdatedAtIn(vs ...time.Time) predicate.User {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -215,7 +215,7 @@ func UpdatedAtIn(vs ...time.Time) predicate.User {
 
 // UpdatedAtNotIn applies the NotIn predicate on the "updated_at" field.
 func UpdatedAtNotIn(vs ...time.Time) predicate.User {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -268,7 +268,7 @@ func NameNEQ(v string) predicate.User {
 
 // NameIn applies the In predicate on the "name" field.
 func NameIn(vs ...string) predicate.User {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -279,7 +279,7 @@ func NameIn(vs ...string) predicate.User {
 
 // NameNotIn applies the NotIn predicate on the "name" field.
 func NameNotIn(vs ...string) predicate.User {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -367,7 +367,7 @@ func EmailNEQ(v string) predicate.User {
 
 // EmailIn applies the In predicate on the "email" field.
 func EmailIn(vs ...string) predicate.User {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -378,7 +378,7 @@ func EmailIn(vs ...string) predicate.User {
 
 // EmailNotIn applies the NotIn predicate on the "email" field.
 func EmailNotIn(vs ...string) predicate.User {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -466,7 +466,7 @@ func PasswordNEQ(v string) predicate.User {
 
 // PasswordIn applies the In predicate on the "password" field.
 func PasswordIn(vs ...string) predicate.User {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
@@ -477,7 +477,7 @@ func PasswordIn(vs ...string) predicate.User {
 
 // PasswordNotIn applies the NotIn predicate on the "password" field.
 func PasswordNotIn(vs ...string) predicate.User {
-	v := make([]interface{}, len(vs))
+	v := make([]any, len(vs))
 	for i := range v {
 		v[i] = vs[i]
 	}
diff --git a/backend/ent/user_query.go b/backend/ent/user_query.go
index f83e90f..09d951d 100644
--- a/backend/ent/user_query.go
+++ b/backend/ent/user_query.go
@@ -402,10 +402,10 @@ func (uq *UserQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*User, e
 	if withFKs {
 		_spec.Node.Columns = append(_spec.Node.Columns, user.ForeignKeys...)
 	}
-	_spec.ScanValues = func(columns []string) ([]interface{}, error) {
+	_spec.ScanValues = func(columns []string) ([]any, error) {
 		return (*User).scanValues(nil, columns)
 	}
-	_spec.Assign = func(columns []string, values []interface{}) error {
+	_spec.Assign = func(columns []string, values []any) error {
 		node := &User{config: uq.config}
 		nodes = append(nodes, node)
 		node.Edges.loadedTypes = loadedTypes
@@ -507,11 +507,14 @@ func (uq *UserQuery) sqlCount(ctx context.Context) (int, error) {
 }
 
 func (uq *UserQuery) sqlExist(ctx context.Context) (bool, error) {
-	n, err := uq.sqlCount(ctx)
-	if err != nil {
+	switch _, err := uq.FirstID(ctx); {
+	case IsNotFound(err):
+		return false, nil
+	case err != nil:
 		return false, fmt.Errorf("ent: check existence: %w", err)
+	default:
+		return true, nil
 	}
-	return n > 0, nil
 }
 
 func (uq *UserQuery) querySpec() *sqlgraph.QuerySpec {
@@ -612,7 +615,7 @@ func (ugb *UserGroupBy) Aggregate(fns ...AggregateFunc) *UserGroupBy {
 }
 
 // Scan applies the group-by query and scans the result into the given value.
-func (ugb *UserGroupBy) Scan(ctx context.Context, v interface{}) error {
+func (ugb *UserGroupBy) Scan(ctx context.Context, v any) error {
 	query, err := ugb.path(ctx)
 	if err != nil {
 		return err
@@ -621,7 +624,7 @@ func (ugb *UserGroupBy) Scan(ctx context.Context, v interface{}) error {
 	return ugb.sqlScan(ctx, v)
 }
 
-func (ugb *UserGroupBy) sqlScan(ctx context.Context, v interface{}) error {
+func (ugb *UserGroupBy) sqlScan(ctx context.Context, v any) error {
 	for _, f := range ugb.fields {
 		if !user.ValidColumn(f) {
 			return &ValidationError{Name: f, err: fmt.Errorf("invalid field %q for group-by", f)}
@@ -668,7 +671,7 @@ type UserSelect struct {
 }
 
 // Scan applies the selector query and scans the result into the given value.
-func (us *UserSelect) Scan(ctx context.Context, v interface{}) error {
+func (us *UserSelect) Scan(ctx context.Context, v any) error {
 	if err := us.prepareQuery(ctx); err != nil {
 		return err
 	}
@@ -676,7 +679,7 @@ func (us *UserSelect) Scan(ctx context.Context, v interface{}) error {
 	return us.sqlScan(ctx, v)
 }
 
-func (us *UserSelect) sqlScan(ctx context.Context, v interface{}) error {
+func (us *UserSelect) sqlScan(ctx context.Context, v any) error {
 	rows := &sql.Rows{}
 	query, args := us.sql.Query()
 	if err := us.driver.Query(ctx, query, args, rows); err != nil {
diff --git a/backend/go.sum b/backend/go.sum
index 62767e2..7ce209a 100644
--- a/backend/go.sum
+++ b/backend/go.sum
@@ -61,11 +61,13 @@ github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovk
 github.com/mattn/go-isatty v0.0.14/go.mod h1:7GGIvUiUoEMVVmxf/4nioHXj79iQHKdU27kJ6hsGG94=
 github.com/mattn/go-isatty v0.0.16 h1:bq3VjFmv/sOjHtdEhmkEV4x1AJtvUvOJ2PFAZ5+peKQ=
 github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
+github.com/mattn/go-runewidth v0.0.9 h1:Lm995f3rfxdpd6TSmuVCHVb/QhupuXlYr8sCI/QdE+0=
 github.com/mattn/go-sqlite3 v1.14.15 h1:vfoHhTN1af61xCRSWzFIWzx2YskyMTwHLrExkBOjvxI=
 github.com/mattn/go-sqlite3 v1.14.15/go.mod h1:2eHXhiwb8IkHr+BDWZGa96P6+rkvnG63S2DGjv9HUNg=
 github.com/mitchellh/go-wordwrap v1.0.1 h1:TLuKupo69TCn6TQSyGxwI1EblZZEsQ0vMlAFQflz0v0=
 github.com/mitchellh/go-wordwrap v1.0.1/go.mod h1:R62XHJLzvMFRBbcrT7m7WgmE1eOyTSsCt+hzestvNj0=
 github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
+github.com/olekukonko/tablewriter v0.0.5 h1:P2Ga83D34wi1o9J6Wh1mRuqd4mF/x/lgBS7N7AbDhec=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
@@ -75,6 +77,8 @@ github.com/rs/xid v1.4.0/go.mod h1:trrq9SKmegXys3aeAKXMUTdJsYXVwGY3RLcfgqegfbg=
 github.com/rs/zerolog v1.28.0 h1:MirSo27VyNi7RJYP3078AA1+Cyzd2GB66qy3aUHvsWY=
 github.com/rs/zerolog v1.28.0/go.mod h1:NILgTygv/Uej1ra5XxGf82ZFSLk58MFGAUS2o6usyD0=
 github.com/sergi/go-diff v1.0.0 h1:Kpca3qRNrduNnOQeazBd0ysaKrUJiIuISHxogkT9RPQ=
+github.com/spf13/cobra v1.5.0 h1:X+jTBEBqF0bHN+9cSMgmfuvv2VHJ9ezmFNf9Y/XstYU=
+github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=