Add Mode6Test: copy of Mode5Test running on port 3000

Mode6Test/backend/list-redis-keys.cjs

@@ -0,0 +1,25 @@
+// Script to list all Redis/Valkey keys and their values for visualization (CommonJS)
+const Redis = require('ioredis');
+
+const redis = new Redis({
+  host: process.env.REDIS_HOST || '127.0.0.1',
+  port: Number(process.env.REDIS_PORT || 6379),
+  password: process.env.REDIS_PASSWORD,
+});
+
+(async () => {
+  try {
+    const keys = await redis.keys('*');
+    const result = [];
+    for (const key of keys) {
+      let value = await redis.get(key);
+      try { value = JSON.parse(value); } catch {}
+      result.push({ key, value });
+    }
+    console.log(JSON.stringify(result, null, 2));
+    process.exit(0);
+  } catch (err) {
+    console.error('Error listing Redis keys:', err);
+    process.exit(1);
+  }
+})();