feat: asset cache dirs as SpipPaths constants

src/AssetsClearCache.php

@@ -12,8 +12,8 @@ class AssetsClearCache
 {
     /** @var string[] */
     private static array $dirs = [
-        'cache-css',
-        'cache-js',
+        SpipPaths::DIR_ASSETS_CSS,
+        SpipPaths::DIR_ASSETS_JS,
     ];
 
     /**
@@ -30,7 +30,7 @@ class AssetsClearCache
 
         $f = new Filesystem;
         foreach (self::$dirs as $dir) {
-            $toDelete = $vendorDir . '../' . SpipPaths::VAR . '/' . $dir;
+            $toDelete = $vendorDir . '../' . \str_replace('%spip.dirs.var%', SpipPaths::VAR, $dir);
             if ($f->exists($toDelete)) {
                 $f->remove($toDelete);
             }

src/SpipPaths.php

@@ -15,4 +15,9 @@ class SpipPaths
     public const DOC = 'IMG';
 
     public const LOCAL_COMPOSER = 'composer.local.json';
+    public const LOCAL_PLUGINS_DIST = 'plugins-dist.json';
+
+    public const DIR_CACHE = '%spip.dirs.tmp%/cache';
+    public const DIR_ASSETS_CSS = '%spip.dirs.var%/cache-css';
+    public const DIR_ASSETS_JS = '%spip.dirs.var%/cache-js';
 }