feat: add JSON schema for quest

packages/game/src/cli.ts

@@ -0,0 +1,8 @@
+// eslint-disable-next-line import/no-extraneous-dependencies
+import { zodToJsonSchema } from 'zod-to-json-schema'
+import fs from 'fs'
+import { questSchema } from './schema'
+
+const jsonSchema = zodToJsonSchema(questSchema)
+
+fs.writeFileSync('quest.json', JSON.stringify(jsonSchema, null, 2))