Deprecate controllers/services; simplify generics

Added `[Obsolete("Use MediatR")]` attributes to various controller and service classes to indicate deprecation in favor of MediatR. Simplified generic type constraints in `CRUDControllerBase` and related files by removing `IUnique<TId>`. Improved structure and documentation in `CSPMiddleware.cs`. Introduced new extension methods in `EntityExtensions.cs` for safer retrieval of 'Id' properties. Removed `IUnique.cs` interface and updated project dependencies in `DigitalData.Core.Application.csproj` for caching. Overall, these changes enhance code maintainability and clarity.

DigitalData.Core.Application/JWTService.cs

@@ -3,62 +3,61 @@ using Microsoft.IdentityModel.Tokens;
 using System.IdentityModel.Tokens.Jwt;
 using System.Security.Cryptography;
 
-namespace DigitalData.Core.Application
+namespace DigitalData.Core.Application;
+
+/// <summary>
+/// Implements the <see cref="IJWTService{TClaimValue}"/> interface to manage JWT operations for claims of type <typeparamref name="TClaimValue"/>.
+/// </summary>
+public class JWTService<TClaimValue> : IJWTService<TClaimValue>
 {
+    private readonly Func<TClaimValue, SecurityTokenDescriptor> _factory;
+
     /// <summary>
-    /// Implements the <see cref="IJWTService{TClaimValue}"/> interface to manage JWT operations for claims of type <typeparamref name="TClaimValue"/>.
+    /// Initializes a new instance of the <see cref="JWTService{TClaimValue}"/> class.
     /// </summary>
-    public class JWTService<TClaimValue> : IJWTService<TClaimValue>
+    /// <param name="tokenDescriptorFactory">A factory function to produce <see cref="SecurityTokenDescriptor"/> based on the claim value.</param>
+    public JWTService(Func<TClaimValue, SecurityTokenDescriptor> tokenDescriptorFactory)
     {
-        private readonly Func<TClaimValue, SecurityTokenDescriptor> _factory;
+        _factory = tokenDescriptorFactory;
+    }
 
-        /// <summary>
-        /// Initializes a new instance of the <see cref="JWTService{TClaimValue}"/> class.
-        /// </summary>
-        /// <param name="tokenDescriptorFactory">A factory function to produce <see cref="SecurityTokenDescriptor"/> based on the claim value.</param>
-        public JWTService(Func<TClaimValue, SecurityTokenDescriptor> tokenDescriptorFactory)
-        {
-            _factory = tokenDescriptorFactory;
-        }
+    /// <summary>
+    /// Generates a symmetric security key with the specified byte size.
+    /// </summary>
+    /// <param name="byteSize">The size of the security key in bytes. Default is 32 bytes.</param>
+    /// <returns>A new instance of <see cref="SymmetricSecurityKey"/>.</returns>
+    public static SymmetricSecurityKey GenerateSecurityKey(int byteSize = 32)
+    {
+        using var rng = RandomNumberGenerator.Create();
+        var randomBytes = new byte[byteSize];
+        rng.GetBytes(randomBytes);
+        var securityKey = new SymmetricSecurityKey(randomBytes);
 
-        /// <summary>
-        /// Generates a symmetric security key with the specified byte size.
-        /// </summary>
-        /// <param name="byteSize">The size of the security key in bytes. Default is 32 bytes.</param>
-        /// <returns>A new instance of <see cref="SymmetricSecurityKey"/>.</returns>
-        public static SymmetricSecurityKey GenerateSecurityKey(int byteSize = 32)
-        {
-            using var rng = RandomNumberGenerator.Create();
-            var randomBytes = new byte[byteSize];
-            rng.GetBytes(randomBytes);
-            var securityKey = new SymmetricSecurityKey(randomBytes);
+        return securityKey;
+    }
 
-            return securityKey;
-        }
+    /// <summary>
+    /// Generates a JWT for the specified claim value.
+    /// </summary>
+    /// <param name="claimValue">The claim value to encode in the JWT.</param>
+    /// <returns>A JWT as a string.</returns>
+    public string GenerateToken(TClaimValue claimValue)
+    {
+        var tokenDescriptor = _factory(claimValue);
 
-        /// <summary>
-        /// Generates a JWT for the specified claim value.
-        /// </summary>
-        /// <param name="claimValue">The claim value to encode in the JWT.</param>
-        /// <returns>A JWT as a string.</returns>
-        public string GenerateToken(TClaimValue claimValue)
-        {
-            var tokenDescriptor = _factory(claimValue);
+        var tokenHandler = new JwtSecurityTokenHandler();
+        var token = tokenHandler.CreateToken(tokenDescriptor);
+        return tokenHandler.WriteToken(token);
+    }
 
-            var tokenHandler = new JwtSecurityTokenHandler();
-            var token = tokenHandler.CreateToken(tokenDescriptor);
-            return tokenHandler.WriteToken(token);
-        }
-
-        /// <summary>
-        /// Reads and validates a security token from a string representation.
-        /// </summary>
-        /// <param name="token">The JWT to read.</param>
-        /// <returns>A <see cref="JwtSecurityToken"/> if the token is valid; otherwise, null.</returns>
-        public JwtSecurityToken? ReadSecurityToken(string token)
-        {
-            var tokenHandler = new JwtSecurityTokenHandler();
-            return tokenHandler.CanReadToken(token) ? tokenHandler.ReadToken(token) as JwtSecurityToken : null;
-        }
+    /// <summary>
+    /// Reads and validates a security token from a string representation.
+    /// </summary>
+    /// <param name="token">The JWT to read.</param>
+    /// <returns>A <see cref="JwtSecurityToken"/> if the token is valid; otherwise, null.</returns>
+    public JwtSecurityToken? ReadSecurityToken(string token)
+    {
+        var tokenHandler = new JwtSecurityTokenHandler();
+        return tokenHandler.CanReadToken(token) ? tokenHandler.ReadToken(token) as JwtSecurityToken : null;
     }
 }