- Changed `Signature` properties from `int` to `double` for precise positioning.
- Added necessary using directives in `EnvelopeReceiverController.cs` for database operations.
- Introduced a private `_cnnStr` field in `EnvelopeReceiverController` to store the connection string.
- Updated the constructor to accept `IOptions<ConnectionString>` for dependency injection of the connection string.
- Added a SQL command block to handle document element additions using a stored procedure.
- Configured the `ConnectionString` class in `Program.cs` to bind the connection string from app settings.
- Created a new `ConnectionString` class to manage the connection string value.
- Updated API documentation in AuthController.cs to include an optional "id" field in the authentication request body.
- Modified the Login record in Login.cs to require a "Password" field and include optional "Id" and "Username" fields, along with updated documentation comments.
- AuthController.cs mit XML-Dokumentation aktualisiert und Parameter der Login-Methode umstrukturiert.
- Geänderte Klassendefinition zu partiell für Erweiterbarkeit.
- XML-Dokumentationsgenerierung zur Projektdatei hinzugefügt.
- Verbesserte Swagger-Dokumentation in Program.cs und korrigierte API-Beschreibung.
- Einführung einer neuen Datei Login.cs für ein strukturiertes Login-Datenmodell.
