Add Zork engine integration work

dist/server-zork.d.ts

@@ -0,0 +1,16 @@
+/**
+ * Zork LLM Server
+ *
+ * Starts an Express + Socket.IO server that runs Zork I through the
+ * ZorkLlmEngine and serves the same shared client UI as the YAML engine.
+ *
+ * Usage:
+ *   npm run dev:zork      (development, with file watching)
+ *   npm run start:zork    (production, from compiled dist/)
+ *
+ * Environment variables:
+ *   PORT             – HTTP port (default: 3002)
+ *   ZORK_STORY_FILE  – path to the story file (default: ./data/z-code/zork1.bin)
+ *   OPENROUTER_API_KEY, OPENROUTER_MODEL – required
+ */
+export {};