chore: fixes tia when not running on root

src/Exceptions/TiaRequiresRepositoryRoot.php

@@ -0,0 +1,44 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Exceptions;
+
+use NunoMaduro\Collision\Contracts\RenderlessEditor;
+use NunoMaduro\Collision\Contracts\RenderlessTrace;
+use Pest\Contracts\Panicable;
+use RuntimeException;
+use Symfony\Component\Console\Exception\ExceptionInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+/**
+ * @internal
+ */
+final class TiaRequiresRepositoryRoot extends RuntimeException implements ExceptionInterface, Panicable, RenderlessEditor, RenderlessTrace
+{
+    public function __construct(private readonly string $subdirectoryPrefix)
+    {
+        parent::__construct(sprintf(
+            'Tia mode requires the project root to be the git repository root, but it sits in the subdirectory [%s] of a larger repo.',
+            $this->subdirectoryPrefix,
+        ));
+    }
+
+    public function render(OutputInterface $output): void
+    {
+        $output->writeln([
+            '',
+            '  <fg=white;options=bold;bg=red> ERROR </> Tia mode requires the git repository root.',
+            '',
+            sprintf('  This project sits in a subdirectory of a larger repo <fg=yellow>%s</>.', $this->subdirectoryPrefix),
+            '',
+            '  Give the project its own git repository to use Tia.',
+            '',
+        ]);
+    }
+
+    public function exitCode(): int
+    {
+        return 1;
+    }
+}