Rename SignCommand to SigningCommand across codebase

Updated all references to `SignCommand` to use the new `SigningCommand` name for consistency and clarity. This includes changes to class definitions, method signatures, and pipeline behaviors in the following files:

- `DependencyInjection.cs`: Updated pipeline behaviors to use `SigningCommand`.
- `AnnotationBehavior.cs`: Updated class definition and methods to use `SigningCommand`. Marked `SignCommand` as `[Obsolete]`.
- `DocStatusBehavior.cs`, `EnvelopeReceiverResolutionBehavior.cs`, `HistoryBehavior.cs`, `SendSignedMailBehavior.cs`: Updated class definitions and methods to use `SigningCommand`.
- `SendSignedMailBehavior.cs`: Updated `CreatePlaceHolders` method to accept `SigningCommand`.
- `SigningCommand.cs`: Renamed `SignCommand` record to `SigningCommand` and updated internal methods and properties. Renamed `SignCommandHandler` to `SigningCommandHandler`.

Marked `SignCommand` as `[Obsolete]` where applicable to indicate deprecation. These changes improve code readability and align the command name with its purpose in the signing process.

EnvelopeGenerator.Application/Signatures/Behaviors/AnnotationBehavior.cs

@@ -11,7 +11,7 @@ namespace EnvelopeGenerator.Application.Signatures.Behaviors;
 /// Executes first in the signing process.
 /// </summary>
 [Obsolete("This notification is deprecated. Use Signature.Commands.SignCommand instead.")]
-public class AnnotationBehavior : IPipelineBehavior<SignCommand, Unit>
+public class AnnotationBehavior : IPipelineBehavior<SigningCommand, Unit>
 {
     private readonly IRepository<ElementAnnotation> _repo;
 
@@ -31,7 +31,7 @@ public class AnnotationBehavior : IPipelineBehavior<SignCommand, Unit>
     /// <param name="next"></param>
     /// <param name="cancellationToken"></param>
     /// <returns></returns>
-    public async Task<Unit> Handle(SignCommand request, RequestHandlerDelegate<Unit> next, CancellationToken cancellationToken)
+    public async Task<Unit> Handle(SigningCommand request, RequestHandlerDelegate<Unit> next, CancellationToken cancellationToken)
     {
         if (request.PsPdfKitAnnotation is PsPdfKitAnnotation annot)
             await _repo.CreateAsync(annot.Structured, cancellationToken);

EnvelopeGenerator.Application/Signatures/Behaviors/DocStatusBehavior.cs

@@ -11,7 +11,7 @@ namespace EnvelopeGenerator.Application.Signatures.Behaviors;
 /// Pipeline behavior that creates document status.
 /// Executes second in the signing process.
 /// </summary>
-public class DocStatusBehavior : IPipelineBehavior<SignCommand, Unit>
+public class DocStatusBehavior : IPipelineBehavior<SigningCommand, Unit>
 {
     private const string BlankAnnotationJson = "{}";
 
@@ -34,7 +34,7 @@ public class DocStatusBehavior : IPipelineBehavior<SignCommand, Unit>
     /// <param name="cancellationToken"></param>
     /// <returns></returns>
     [Obsolete("This notification is deprecated. Use Signature.Commands.SignCommand instead.")]
-    public async Task<Unit> Handle(SignCommand request, RequestHandlerDelegate<Unit> next, CancellationToken cancellationToken)
+    public async Task<Unit> Handle(SigningCommand request, RequestHandlerDelegate<Unit> next, CancellationToken cancellationToken)
     {
         await _sender.Send(new CreateDocStatusCommand()
         {

EnvelopeGenerator.Application/Signatures/Behaviors/EnvelopeReceiverResolutionBehavior.cs

@@ -15,7 +15,7 @@ namespace EnvelopeGenerator.Application.Signatures.Behaviors;
 /// Executes FIRST in the signing process - before all other behaviors.
 /// If EnvelopeReceiver is not provided, it queries the database using EnvelopeReceiverQueryBase parameters.
 /// </summary>
-public class EnvelopeReceiverResolutionBehavior : IPipelineBehavior<SignCommand, Unit>
+public class EnvelopeReceiverResolutionBehavior : IPipelineBehavior<SigningCommand, Unit>
 {
     private readonly IRepository<EnvelopeReceiver> _erRepo;
     private readonly IMapper _mapper;
@@ -38,7 +38,7 @@ public class EnvelopeReceiverResolutionBehavior : IPipelineBehavior<SignCommand,
     /// <param name="next"></param>
     /// <param name="cancellationToken"></param>
     /// <returns></returns>
-    public async Task<Unit> Handle(SignCommand request, RequestHandlerDelegate<Unit> next, CancellationToken cancellationToken)
+    public async Task<Unit> Handle(SigningCommand request, RequestHandlerDelegate<Unit> next, CancellationToken cancellationToken)
     {
         // If EnvelopeReceiver is not provided, query it from database
         if (request.EnvelopeReceiver is null)

EnvelopeGenerator.Application/Signatures/Behaviors/HistoryBehavior.cs

@@ -10,7 +10,7 @@ namespace EnvelopeGenerator.Application.Signatures.Behaviors;
 /// Pipeline behavior that records history.
 /// Executes third in the signing process.
 /// </summary>
-public class HistoryBehavior : IPipelineBehavior<SignCommand, Unit>
+public class HistoryBehavior : IPipelineBehavior<SigningCommand, Unit>
 {
     private readonly ISender _sender;
 
@@ -30,7 +30,7 @@ public class HistoryBehavior : IPipelineBehavior<SignCommand, Unit>
     /// <param name="next"></param>
     /// <param name="cancellationToken"></param>
     /// <returns></returns>
-    public async Task<Unit> Handle(SignCommand request, RequestHandlerDelegate<Unit> next, CancellationToken cancellationToken)
+    public async Task<Unit> Handle(SigningCommand request, RequestHandlerDelegate<Unit> next, CancellationToken cancellationToken)
     {
         if (request.EnvelopeReceiver.Receiver is null)
             throw new InvalidOperationException($"Receiver information is missing in the notification. SignCommand:\n {request.ToJson(Format.Json.ForDiagnostics)}");

EnvelopeGenerator.Application/Signatures/Behaviors/SendSignedMailBehavior.cs

@@ -17,7 +17,7 @@ namespace EnvelopeGenerator.Application.Signatures.Behaviors;
 /// Pipeline behavior that sends signed mail notification.
 /// Executes LAST in the signing process - only if all previous behaviors succeed.
 /// </summary>
-public class SendSignedMailBehavior : IPipelineBehavior<SignCommand, Unit>
+public class SendSignedMailBehavior : IPipelineBehavior<SigningCommand, Unit>
 {
     private readonly IRepository<EmailTemplate> _tempRepo;
     private readonly IRepository<EmailOut> _emailOutRepo;
@@ -50,7 +50,7 @@ public class SendSignedMailBehavior : IPipelineBehavior<SignCommand, Unit>
     /// <param name="next"></param>
     /// <param name="cancellationToken"></param>
     /// <returns></returns>
-    public async Task<Unit> Handle(SignCommand request, RequestHandlerDelegate<Unit> next, CancellationToken cancellationToken)
+    public async Task<Unit> Handle(SigningCommand request, RequestHandlerDelegate<Unit> next, CancellationToken cancellationToken)
     {
         var placeHolders = CreatePlaceHolders(request);
 
@@ -82,7 +82,7 @@ public class SendSignedMailBehavior : IPipelineBehavior<SignCommand, Unit>
         return await next(cancellationToken);
     }
 
-    private Dictionary<string, string> CreatePlaceHolders(SignCommand request)
+    private Dictionary<string, string> CreatePlaceHolders(SigningCommand request)
     {
         var placeHolders = new Dictionary<string, string>()
         {

EnvelopeGenerator.Application/Signatures/Commands/SigningCommand.cs

@@ -8,7 +8,7 @@ namespace EnvelopeGenerator.Application.Signatures.Commands;
 /// <summary>
 /// Command to sign a document by a receiver.
 /// </summary>
-public record SignCommand : EnvelopeReceiverQueryBase, IRequest
+public record SigningCommand : EnvelopeReceiverQueryBase, IRequest
 {
     private EnvelopeReceiverDto? _envelopeReceiver;
 
@@ -37,7 +37,7 @@ public record SignCommand : EnvelopeReceiverQueryBase, IRequest
 /// Handles the sign command. All work is done by pipeline behaviors.
 /// This handler is intentionally empty - behaviors handle all the processing.
 /// </summary>
-public class SignCommandHandler : IRequestHandler<SignCommand>
+public class SignCommandHandler : IRequestHandler<SigningCommand>
 {
     /// <summary>
     /// Executes the signing command. Pipeline behaviors handle all processing.
@@ -45,7 +45,7 @@ public class SignCommandHandler : IRequestHandler<SignCommand>
     /// <param name="request"></param>
     /// <param name="cancellationToken"></param>
     /// <returns></returns>
-    public Task Handle(SignCommand request, CancellationToken cancellationToken = default)
+    public Task Handle(SigningCommand request, CancellationToken cancellationToken = default)
     {
         return Task.CompletedTask;
     }