Add new JSON files for documentation and scripts in the graphify cache

- Created JSON file for admin SPA test suite with detailed nodes and edges.
- Added JSON file for Liara deployment documentation, including various steps and references.
- Introduced JSON files for Liara pre-build and pre-start scripts, detailing their structure and entry points.
- Included an empty JSON file indicating skipped data for non-config/manifest content.

src/Kernel.php

@@ -8,4 +8,16 @@ use Symfony\Component\HttpKernel\Kernel as BaseKernel;
 class Kernel extends BaseKernel
 {
     use MicroKernelTrait;
+
+    // On read-only-root PaaS (Liara), var/ is not writable. Redirect cache/log to a
+    // writable path (e.g. /tmp) via env; falls back to the default var/ locally.
+    public function getCacheDir(): string
+    {
+        return $_SERVER['APP_CACHE_DIR'] ?? parent::getCacheDir();
+    }
+
+    public function getLogDir(): string
+    {
+        return $_SERVER['APP_LOG_DIR'] ?? parent::getLogDir();
+    }
 }