Enable more analyzers, drop log-and-rethrow in file activities and apply dotnet format

Use invariant culture when formatting ids, put cancellation tokens last in endpoint handlers, remove the
CS8618 pragmas and keep only the analyzer overrides that still apply.

backend/Core/Musify.Domain/ValueObjects/TrackAudio.cs

@@ -2,7 +2,6 @@ using System.Diagnostics.CodeAnalysis;
 
 namespace Musify.Domain.ValueObjects;
 
-#pragma warning disable CS8618
 public class TrackAudio
 {
     public string? OriginalName { get; set; }

backend/Core/Musify.Domain/ValueObjects/TrackPictures.cs

@@ -2,7 +2,6 @@ using System.Diagnostics.CodeAnalysis;
 
 namespace Musify.Domain.ValueObjects;
 
-#pragma warning disable CS8618
 public class TrackPictures
 {
     public string? OriginalName { get; set; }