feat(tia): continues to work on poc

src/Contracts/Plugins/Runnable.php

@@ -0,0 +1,21 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Contracts\Plugins;
+
+/**
+ * Called around the test body (`__runTest`). Return `false` to skip the
+ * closure — a synthetic assertion is registered so PHPUnit does not flag the
+ * test as risky.
+ *
+ * @internal
+ */
+interface Runnable
+{
+    /**
+     * @param  string  $filename  Absolute path of the test file.
+     * @param  string  $testId    Fully-qualified `Class::method` identifier.
+     */
+    public function run(string $filename, string $testId): bool;
+}