refactor: implement centralized cache key management and add utility traits for vCenter SSH operations.

app/Support/Cache/CacheKey.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace App\Support\Cache;
+
+final class CacheKey
+{
+    /**
+     * Build a canonical cache key.
+     *
+     * Format: module:type[:param:value[:param:value...]]
+     *
+     * Examples:
+     *   CacheKey::build('students', 'list', ['page' => 1])
+     *     => "students:list:page:1"
+     *
+     *   CacheKey::build('students', 'list', ['status' => 'active', 'page' => 2])
+     *     => "students:list:page:2:status:active"  (sorted by key)
+     *
+     *   CacheKey::build('students', 'detail', ['id' => 15])
+     *     => "students:detail:id:15"
+     */
+    public static function build(string $module, string $type, array $params = []): string
+    {
+        ksort($params);
+
+        $parts = [$module, $type];
+
+        foreach ($params as $param => $value) {
+            $parts[] = (string) $param;
+            $parts[] = is_array($value) ? implode(',', $value) : (string) $value;
+        }
+
+        return implode(':', $parts);
+    }
+}