fix(console): interactive components taking terminal height into account

packages/console/src/Terminal/Terminal.php

@@ -175,7 +175,7 @@ private function resetInitialCursor(): void
         if ($requiredHeight > $availableHeight) {
             $this->initialCursor->setPosition(new Point(
                 x: $this->initialCursor->getPosition()->x,
-                y: $this->height - $requiredHeight,
+                y: max(0, $this->height - $requiredHeight),
             ));
         }
     }

tests/Integration/Console/TerminalTest.php

@@ -5,7 +5,9 @@
 namespace Tests\Tempest\Integration\Console;
 
 use PHPUnit\Framework\Attributes\Test;
+use Tempest\Console\Components\Concerns\HasState;
 use Tempest\Console\Console;
+use Tempest\Console\InteractiveConsoleComponent;
 use Tempest\Console\Terminal\Terminal;
 use Tests\Tempest\Integration\FrameworkIntegrationTestCase;
 
@@ -27,4 +29,43 @@ public function supports_tty(): void
                 $this->assertFalse($terminal->supportsTty);
             });
     }
+
+    #[Test]
+    public function interactive_render_keeps_cursor_within_terminal_when_body_is_taller_than_terminal(): void
+    {
+        $this->console
+            ->withoutPrompting()
+            ->call(function (Console $console): void {
+                $terminal = new Terminal($console);
+                $terminal->disableTty();
+
+                $component = new class implements InteractiveConsoleComponent {
+                    use HasState;
+
+                    public int $render = 0;
+
+                    public function render(Terminal $terminal): string
+                    {
+                        $this->render += 1;
+
+                        return implode(PHP_EOL, array_map(
+                            fn (int $line): string => "render {$this->render} line {$line}",
+                            range(1, 40),
+                        ));
+                    }
+
+                    public function renderFooter(Terminal $terminal): ?string
+                    {
+                        return null;
+                    }
+
+                    public function setErrors(array $errors): self
+                    {
+                        return $this;
+                    }
+                };
+
+                $this->assertGreaterThanOrEqual(0, $terminal->cursor->getPosition()->y);
+            });
+    }
 }