feat: M3 import & indexing engine delivery layer with durable collision handling, space checking and console

tests/Integration/TaskRunnerTest.php

@@ -43,6 +43,14 @@ final class TaskRunnerTest extends TestCase
                 self::assertStringContainsString('compose', $output);
                 self::assertStringContainsString(str_replace('\\', '/', $root), str_replace('\\', '/', $output));
             }
+            // Import engine entrypoints must reach bin/meshvault with their arguments intact.
+            foreach (['import', 'worker', 'worker-once'] as $command) {
+                [$code, $output] = $this->invoke([...$runner, $command, '--probe'], $temporary, $environment);
+                self::assertSame(37, $code, $command . ': ' . $output);
+                self::assertStringContainsString('bin/meshvault', $output);
+                self::assertStringContainsString($command, $output);
+                self::assertStringContainsString('--probe', $output);
+            }
             foreach (['unknown'] as $command) {
                 [$code, $output] = $this->invoke([...$runner, $command], $temporary, $environment);
                 self::assertNotSame(0, $code);