Switch console file fields to File download URLs

Replace presigned URL string fields (logoUrl, fileUrl, ndaFileName,
etc.) with nested File references resolved through /api/files/v1/.
Update console Relay queries and e2e coverage accordingly.

Route NDA upload through filemanager.PutFile and return stable IAM
org logo URLs for consistency with the files API.

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

pkg/server/api/console/v1/graphql/file.graphql

@@ -3,7 +3,7 @@ type File {
     mimeType: String!
     fileName: String!
     size: BigInt!
-    downloadUrl: String! @goField(forceResolver: true)
+    downloadUrl: String!
     createdAt: Datetime!
     updatedAt: Datetime!
 }