Migrate Connect org logos to File type

Replace Organization.logoUrl and horizontalLogoUrl with nested File
objects whose downloadUrl points at /api/files/v1/public/{id}, matching
the Console migration.

Org logos are FileVisibilityPublic and served without HTTP auth, so
Connect File.downloadUrl is built eagerly in NewFile with no field-level
authorize. Logo loading moves to iam.OrganizationService.LogoFile and
HorizontalLogoFile; the old URL generators are removed.

Sync IAM Relay components and n8n organization operations. Add an e2e
test for Connect multipart logo upload and ExecuteConnectWithFile.

Signed-off-by: Ludovic Vielle <ludovic@probo.com>

apps/console/src/pages/iam/memberships/_components/MembershipCard.tsx

@@ -46,7 +46,9 @@ const organizationFragment = graphql`
   fragment MembershipCard_organizationFragment on Organization {
     id
     name
-    logoUrl
+    logo {
+      downloadUrl
+    }
   }
 `;
 
@@ -101,7 +103,7 @@ export function MembershipCard(props: MembershipCardProps) {
       <div className="flex items-center justify-between">
         <div className="flex items-center gap-4 hover:text-primary flex-1">
           <Avatar
-            src={organization.logoUrl}
+            src={organization.logo?.downloadUrl}
             name={organization.name}
             size="l"
           />

apps/console/src/pages/iam/organizations/_components/MembershipsDropdownMenuItem.tsx

@@ -41,7 +41,9 @@ const organizationFragment = graphql`
   fragment MembershipsDropdownMenuItem_organizationFragment on Organization {
     id
     name
-    logoUrl
+    logo {
+      downloadUrl
+    }
   }
 `;
 
@@ -63,7 +65,7 @@ export function MembershipsDropdownMenuItem(props: {
   return (
     <DropdownItem key={id} asChild>
       <Link to={`/organizations/${organization.id}`}>
-        <Avatar name={organization.name} src={organization.logoUrl} />
+        <Avatar name={organization.name} src={organization.logo?.downloadUrl} />
         <span className="flex-1">{organization.name}</span>
         {isAssuming && (
           <IconCheckmark1 size={16} className="text-green-600" />

apps/console/src/pages/iam/organizations/settings/_components/OrganizationForm.tsx

@@ -41,8 +41,12 @@ const fragment = graphql`
   fragment OrganizationFormFragment on Organization {
     id
     name @required(action: THROW)
-    logoUrl
-    horizontalLogoUrl
+    logo {
+      downloadUrl
+    }
+    horizontalLogo {
+      downloadUrl
+    }
     description
     websiteUrl
     email
@@ -57,8 +61,12 @@ const updateOrganizationMutation = graphql`
       organization {
         id
         name
-        logoUrl
-        horizontalLogoUrl
+        logo {
+          downloadUrl
+        }
+        horizontalLogo {
+          downloadUrl
+        }
         description
         websiteUrl
         email
@@ -75,7 +83,9 @@ const deleteHorizontalLogoMutation = graphql`
     deleteOrganizationHorizontalLogo(input: $input) {
       organization {
         id
-        horizontalLogoUrl
+        horizontalLogo {
+          downloadUrl
+        }
       }
     }
   }
@@ -225,8 +235,8 @@ export function OrganizationForm(props: {
           <Label>{__("Organization logo")}</Label>
           <div className="flex w-max items-center gap-4">
             <Avatar
-              className={logoPreview || organization.logoUrl ? "bg-transparent" : undefined}
-              src={logoPreview || organization.logoUrl}
+              className={logoPreview || organization.logo?.downloadUrl ? "bg-transparent" : undefined}
+              src={logoPreview || organization.logo?.downloadUrl}
               name={organization.name}
               size="xl"
             />
@@ -253,12 +263,12 @@ export function OrganizationForm(props: {
             )}
           </p>
           <div className="flex items-center gap-4">
-            {(horizontalLogoPreview || organization.horizontalLogoUrl) && (
+            {(horizontalLogoPreview || organization.horizontalLogo?.downloadUrl) && (
               <div className="border border-border-solid rounded-md p-4 bg-surface-secondary">
                 <img
                   src={
                     horizontalLogoPreview
-                    || organization.horizontalLogoUrl
+                    || organization.horizontalLogo?.downloadUrl
                     || undefined
                   }
                   alt={__("Horizontal logo")}
@@ -275,12 +285,12 @@ export function OrganizationForm(props: {
               >
                 {isUpdatingOrganization
                   ? __("Uploading...")
-                  : horizontalLogoPreview || organization.horizontalLogoUrl
+                  : horizontalLogoPreview || organization.horizontalLogo?.downloadUrl
                     ? __("Change horizontal logo")
                     : __("Upload horizontal logo")}
               </FileButton>
             )}
-            {canUpdate && organization.horizontalLogoUrl && (
+            {canUpdate && organization.horizontalLogo?.downloadUrl && (
               <Dialog
                 ref={deleteDialogRef}
                 trigger={(