Fix bin/publish: copy docs.dist from project root

Fix bin/publish: use correct .env path for rspade_system
Fix bin/publish script: prevent grep exit code 1 from terminating script

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Co-Authored-By: Claude <noreply@anthropic.com>

vendor/spatie/flare-client-php/src/helpers.php

@@ -0,0 +1,23 @@
+<?php
+
+if (! function_exists('array_merge_recursive_distinct')) {
+    /**
+     * @param array<int|string, mixed> $array1
+     * @param array<int|string, mixed> $array2
+     *
+     * @return array<int|string, mixed>
+     */
+    function array_merge_recursive_distinct(array &$array1, array &$array2): array
+    {
+        $merged = $array1;
+        foreach ($array2 as $key => &$value) {
+            if (is_array($value) && isset($merged[$key]) && is_array($merged[$key])) {
+                $merged[$key] = array_merge_recursive_distinct($merged[$key], $value);
+            } else {
+                $merged[$key] = $value;
+            }
+        }
+
+        return $merged;
+    }
+}