chore: bump CLI version to 0.27.8

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: spawn-qa-bot

packages/cli/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@openrouter/spawn",
-  "version": "0.27.7",
+  "version": "0.27.8",
   "type": "module",
   "bin": {
     "spawn": "cli.js"