feature: add task delete method

src/Controllers/TaskController.php

@@ -155,4 +155,27 @@ class TaskController
             return $errorResponse;
         }
     }
+
+    public function delete(ServerRequestInterface $request, ResponseInterface $response, $id): ResponseInterface
+    {
+        try
+        {
+            $task = $this->repository->readById((int) $id);
+            $this->repository->delete($task);
+
+            $this->builder->setOptionalMessage('Task deleted.');
+            $response->getBody()->write($this->builder->build());
+
+            return $response;
+
+        } catch (TaskNotFoundException $exception)
+        {
+            $this->builder->setError()->setErrorMessage($exception->getMessage())->setErrorCode(404);
+
+            $errorResponse = $response->withStatus(404);
+            $errorResponse->getBody()->write($this->builder->build());
+
+            return $errorResponse;
+        }
+    }
 }