Add Macroable and Conditionable traits to some core classes (#76)

* Add Macroable and Conditionable traits to core classes

- Applied `Macroable` and `Conditionable` traits to:
  - `Request`
  - `Response`
  - `TestResponse`
- Verified support via new tests for:
  - Custom macro methods (`->foo()`)
  - `when()` and `unless()` conditional method chaining
- Added trait tests for prompt, resource, and tool responses in:
  - `TestResponseTraitsTest` for Prompts, Resources, Tools
  - `RequestTest` and `ResponseTest` unit coverage

* Remove redundant tests

Author: mattwells-coex

src/Request.php

@@ -8,15 +8,19 @@
 use Illuminate\Contracts\Auth\Authenticatable;
 use Illuminate\Contracts\Support\Arrayable;
 use Illuminate\Support\Facades\Validator;
+use Illuminate\Support\Traits\Conditionable;
 use Illuminate\Support\Traits\InteractsWithData;
+use Illuminate\Support\Traits\Macroable;
 use Illuminate\Validation\ValidationException;
 
 /**
  * @implements Arrayable<string, mixed>
  */
 class Request implements Arrayable
 {
+    use Conditionable;
     use InteractsWithData;
+    use Macroable;
 
     /**
      * @param  array<string, mixed>  $arguments

src/Response.php

@@ -4,6 +4,8 @@
 
 namespace Laravel\Mcp;
 
+use Illuminate\Support\Traits\Conditionable;
+use Illuminate\Support\Traits\Macroable;
 use JsonException;
 use Laravel\Mcp\Enums\Role;
 use Laravel\Mcp\Exceptions\NotImplementedException;
@@ -14,6 +16,9 @@
 
 class Response
 {
+    use Conditionable;
+    use Macroable;
+
     protected function __construct(
         protected Content $content,
         protected Role $role = Role::USER,

src/Server/Testing/TestResponse.php

@@ -6,6 +6,8 @@
 
 use Illuminate\Container\Container;
 use Illuminate\Contracts\Auth\Authenticatable;
+use Illuminate\Support\Traits\Conditionable;
+use Illuminate\Support\Traits\Macroable;
 use Laravel\Mcp\Server\Primitive;
 use Laravel\Mcp\Server\Prompt;
 use Laravel\Mcp\Server\Resource;
@@ -16,6 +18,9 @@
 
 class TestResponse
 {
+    use Conditionable;
+    use Macroable;
+
     protected JsonRpcResponse $response;
 
     /**