Use long

Application/Configuration/PlayListConfiguration.cs

@@ -61,7 +61,7 @@ namespace Musify.Application.Configuration
 
         public string BuildOriginalPicturePath(string pictureName) => CombineKey(ParentFolders, OriginalPicturesFolder, pictureName);
 
-        public string BuildOriginalPicturePath(Guid userId, string pictureName) => CombineKey(UploadsFolder, userId.ToString(), ParentFolders, OriginalPicturesFolder, pictureName);
+        public string BuildOriginalPicturePath(long userId, string pictureName) => CombineKey(UploadsFolder, userId.ToString(), ParentFolders, OriginalPicturesFolder, pictureName);
 
         public string BuildSmallPicturePath(string pictureName) => CombineKey(ParentFolders, SmallPicturesFolder, pictureName);
 
@@ -70,7 +70,7 @@ namespace Musify.Application.Configuration
         public string BuildLargePicturePath(string pictureName) => CombineKey(ParentFolders, LargePicturesFolder, pictureName);
 
         // Temp path used in Phase 2 for pre-signed upload keys (moved to final on consumption)
-        public string BuildTempPicturePath(string tempRootPrefix, Guid userId, string objectName) =>
+        public string BuildTempPicturePath(string tempRootPrefix, long userId, string objectName) =>
             CombineKey(tempRootPrefix, userId.ToString(), ParentFolders, objectName);
 
         static string CombineKey(params string[] segments)

Application/Configuration/TrackConfiguration.cs

@@ -71,7 +71,7 @@ namespace Musify.Application.Configuration
 
         public string BuildOriginalPicturePath(string pictureName) => CombineKey(OriginalPicturesPath, pictureName);
 
-        public string BuildOriginalPicturePath(Guid userId, string pictureName) => CombineKey(UploadsFolder, userId.ToString(), OriginalPicturesPath, pictureName);
+        public string BuildOriginalPicturePath(long userId, string pictureName) => CombineKey(UploadsFolder, userId.ToString(), OriginalPicturesPath, pictureName);
 
         public string BuildSmallPicturePath(string pictureName) => CombineKey(SmallPicturesPath, pictureName);
 
@@ -81,15 +81,15 @@ namespace Musify.Application.Configuration
 
         public string BuildOriginalAudioPath(string audioName) => CombineKey(OriginalAudiosPath, audioName);
 
-        public string BuildOriginalAudioPath(Guid userId, string audioName) => CombineKey(UploadsFolder, userId.ToString(), OriginalAudiosPath, audioName);
+        public string BuildOriginalAudioPath(long userId, string audioName) => CombineKey(UploadsFolder, userId.ToString(), OriginalAudiosPath, audioName);
 
         public string BuildProcessedAudioPath(string audioName) => CombineKey(ProcessedAudiosPath, audioName);
 
         // Temp paths used in Phase 2 for pre-signed upload keys (moved to final on consumption)
-        public string BuildTempPicturePath(string tempRootPrefix, Guid userId, string objectName) =>
+        public string BuildTempPicturePath(string tempRootPrefix, long userId, string objectName) =>
             CombineKey(tempRootPrefix, userId.ToString(), ParentFolder, objectName);
 
-        public string BuildTempAudioPath(string tempRootPrefix, Guid userId, string objectName) =>
+        public string BuildTempAudioPath(string tempRootPrefix, long userId, string objectName) =>
             CombineKey(tempRootPrefix, userId.ToString(), ParentFolder, objectName);
 
         static string CombineKey(params string[] segments)

Application/Contracts/IStreamTicketService.cs

@@ -2,7 +2,7 @@ namespace Musify.Application.Contracts
 {
     public interface IStreamTicketService
     {
-        StreamTicket IssueTicket(Guid userId, string keyPrefix);
+        StreamTicket IssueTicket(long userId, string keyPrefix);
     }
 
     public record StreamTicket(string Token, int ExpiresInSeconds);

Application/Events/DeletePlayListEvent.cs

@@ -2,5 +2,5 @@ namespace Musify.Application.Events
 {
     public record DeletePlayListEvent(
         Guid PlayListId,
-        Guid UserId);
+        long UserId);
 }

Application/Events/DeleteTrackEvent.cs

@@ -2,5 +2,5 @@ namespace Musify.Application.Events
 {
     public record DeleteTrackEvent(
         Guid TrackId,
-        Guid UserId);
+        long UserId);
 }

Application/PlayLists/Commands/CreatePlayListCommand.cs

@@ -5,7 +5,7 @@ using Musify.Application.PlayLists.Responses;
 namespace Musify.Application.PlayLists.Commands
 {
     public record CreatePlayListCommand(
-        Guid UserId,
+        long UserId,
         string Name,
         string Description,
         Guid? PictureIntentId)

Application/PlayLists/Commands/DeletePlayListCommand.cs

@@ -3,6 +3,6 @@ using Mediator;
 
 namespace Musify.Application.PlayLists.Commands
 {
-    public record DeletePlayListCommand(Guid UserId, Guid PlayListId)
+    public record DeletePlayListCommand(long UserId, Guid PlayListId)
         : ICommand<Result>;
 }

Application/PlayLists/Commands/RequestPlayListPictureUploadCommand.cs

@@ -5,7 +5,7 @@ using Musify.Application.PlayLists.Responses;
 namespace Musify.Application.PlayLists.Commands
 {
     public record RequestPlayListPictureUploadCommand(
-        Guid UserId,
+        long UserId,
         string FileType,
         string ContentType,
         long? ExpectedSizeBytes = null)

Application/PlayLists/Commands/UpdatePlayListCommand.cs

@@ -5,7 +5,7 @@ using Musify.Application.PlayLists.Responses;
 namespace Musify.Application.PlayLists.Commands
 {
     public record UpdatePlayListCommand(
-        Guid UserId,
+        long UserId,
         Guid PlayListId,
         string? NewName,
         string? NewDescription,

Application/PlayLists/Queries/GetPlayListsByUserIdQuery.cs

@@ -6,7 +6,7 @@ using Musify.Application.PlayLists.Responses;
 namespace Musify.Application.PlayLists.Queries
 {
     public record GetPlayListsByUserIdQuery(
-        Guid UserId,
+        long UserId,
     string? Name = null,
         int PageNumber = 1,
         int PageSize = 10)

Application/Services/UploadIntentValidator.cs

@@ -13,7 +13,7 @@ public sealed class UploadIntentValidator(
 {
     public async Task<Result> CheckQuotaAsync(
         UploadIntentConfiguration config,
-        Guid userId,
+        long userId,
         long requiredBytes,
         int requiredIntentCount,
         CancellationToken cancellationToken)
@@ -36,7 +36,7 @@ public sealed class UploadIntentValidator(
     public async Task<Result<UploadIntent>> ValidateAndLoadAsync(
         UploadIntentConfiguration config,
         Guid intentId,
-        Guid userId,
+        long userId,
         CancellationToken cancellationToken)
     {
         var intent = await database.UploadIntents

Application/Tracks/Commands/CreateTrackCommand.cs

@@ -5,7 +5,7 @@ using Musify.Application.Tracks.Responses;
 namespace Musify.Application.Tracks.Commands
 {
     public record CreateTrackCommand(
-        Guid UserId,
+        long UserId,
         string Title,
         Guid PictureIntentId,
         Guid AudioIntentId)

Application/Tracks/Commands/DeleteTrackCommand.cs

@@ -4,7 +4,7 @@ using Mediator;
 namespace Musify.Application.Tracks.Commands
 {
     public record DeleteTrackCommand(
-        Guid UserId,
+        long UserId,
         Guid TrackId)
         : ICommand<Result>;
 }

Application/Tracks/Commands/RequestTrackUploadUrlsCommand.cs

@@ -5,7 +5,7 @@ using Musify.Application.Tracks.Responses;
 namespace Musify.Application.Tracks.Commands
 {
     public record RequestTrackUploadUrlsCommand(
-        Guid UserId,
+        long UserId,
         string PictureFileType,
         string PictureContentType,
         string AudioFileType,

Application/Tracks/Queries/GetTrackStreamQuery.cs

@@ -4,6 +4,6 @@ using Musify.Application.Tracks.Responses;
 
 namespace Musify.Application.Tracks.Queries
 {
-    public record GetTrackStreamQuery(Guid TrackId, Guid UserId)
+    public record GetTrackStreamQuery(Guid TrackId, long UserId)
         : IQuery<Result<TrackStreamResponse>>;
 }

Application/Tracks/Queries/GetTracksByUserIdQuery.cs

@@ -6,7 +6,7 @@ using Musify.Application.Tracks.Responses;
 namespace Musify.Application.Tracks.Queries
 {
     public record GetTracksByUserIdQuery(
-        Guid UserId,
+        long UserId,
     string? Name = null,
         int PageNumber = 1,
         int PageSize = 10)

Application/Users/Commands/CreateUserCommand.cs

@@ -5,7 +5,7 @@ using Musify.Domain.Entities;
 
 namespace Musify.Application.Users.Commands
 {
-    public record CreateUserCommand(Guid Id,
+    public record CreateUserCommand(long Id,
         string Name,
         string? FirstName,
         string? SecondName)

Application/Users/Queries/GetUserByIdQuery.cs

@@ -4,6 +4,6 @@ using Musify.Application.Users.Responses;
 
 namespace Musify.Application.Users.Queries
 {
-    public record GetUserByIdQuery(Guid Id)
+    public record GetUserByIdQuery(long Id)
         : IQuery<Result<UserApplicationResponse> >;
 }

Application/Users/Responses/UserApplicationResponse.cs

@@ -3,7 +3,7 @@
 namespace Musify.Application.Users.Responses
 {
     public record UserApplicationResponse(
-        Guid Id,
+        long Id,
         string Name,
         string? FirstName,
         string? SecondName,