chore(gptel-magit): update model reference to 'openrouter/free'

Author: chuxubank

cats/+vibe.el

@@ -85,7 +85,7 @@
   (gptel-magit-commit-prompt (gptel-prompts-poet (expand-file-name "git-commit.yml.j2" cat-prompt-dir)))
   :config
   (setq gptel-magit-backend (if (eq HOST_TYPE 'iv) gptel--iv gptel--openrouter)
-        gptel-magit-model (if (eq HOST_TYPE 'iv) 'global.anthropic.claude-opus-4-6-v1 'openai/gpt-oss-120b:free))
+        gptel-magit-model (if (eq HOST_TYPE 'iv) 'global.anthropic.claude-opus-4-6-v1 'openrouter/free))
   (defun gptel-magit--generate (callback)
     "Generate a commit message for current magit repo.
 Invokes CALLBACK with the generated message when done."