Rename resolver files from dot to underscore separation

Change gqlgen filename_template from {name}.resolvers.go to
{name}_resolvers.go across all three APIs for consistent Go naming.

Signed-off-by: Émile Ré <emile@getprobo.com>

pkg/server/api/console/v1/electronic_signature_resolvers.go

@@ -0,0 +1,56 @@
+package console_v1
+
+// This file will be automatically regenerated based on the schema, any resolver
+// implementations
+// will be copied through when generating and any unknown code will be moved to the end.
+// Code generated by github.com/99designs/gqlgen version v0.17.87
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"go.probo.inc/probo/pkg/server/api/console/v1/schema"
+	"go.probo.inc/probo/pkg/server/api/console/v1/types"
+)
+
+// CertificateFileURL is the resolver for the certificateFileUrl field.
+func (r *electronicSignatureResolver) CertificateFileURL(ctx context.Context, obj *types.ElectronicSignature) (*string, error) {
+	signature, err := r.esign.GetSignatureByID(ctx, obj.ID)
+	if err != nil {
+		return nil, fmt.Errorf("cannot load signature: %w", err)
+	}
+
+	if signature.CertificateFileID == nil {
+		return nil, nil
+	}
+
+	url, err := r.esign.GenerateCertificateFileURL(ctx, *signature.CertificateFileID, 1*time.Hour)
+	if err != nil {
+		return nil, fmt.Errorf("cannot generate certificate file URL: %w", err)
+	}
+
+	return &url, nil
+}
+
+// Events is the resolver for the events field.
+func (r *electronicSignatureResolver) Events(ctx context.Context, obj *types.ElectronicSignature) ([]*types.ElectronicSignatureEvent, error) {
+	events, err := r.esign.GetEventsBySignatureID(ctx, obj.ID)
+	if err != nil {
+		return nil, fmt.Errorf("cannot load signature events: %w", err)
+	}
+
+	result := make([]*types.ElectronicSignatureEvent, len(events))
+	for i := range events {
+		result[i] = types.NewElectronicSignatureEvent(events[i])
+	}
+
+	return result, nil
+}
+
+// ElectronicSignature returns schema.ElectronicSignatureResolver implementation.
+func (r *Resolver) ElectronicSignature() schema.ElectronicSignatureResolver {
+	return &electronicSignatureResolver{r}
+}
+
+type electronicSignatureResolver struct{ *Resolver }