chore(rebrand): brand caps MokoGit -> MokoGIT

Branding: the MokoGIT wordmark is caps-GIT. Corrects the display token from
MokoGit to MokoGIT (case-sensitive; lowercase path form .mokogit untouched).

Claude-Session: https://claude.ai/code/session_01DQEMmJPe61ya7HDfA6BHP8

cli/workflow_sync.php

@@ -594,7 +594,7 @@ class WorkflowSyncCli extends CliFramework
     }
 
     /**
-     * Read a repo's platform from the MokoGit metadata API.
+     * Read a repo's platform from the MokoGIT metadata API.
      * Returns 'generic' if metadata is missing or has no platform field.
      * (Replaces the retired .mokogit/manifest.xml lookup — platform now lives
      *  in the repo Metadata endpoint: GET /api/v1/repos/{owner}/{repo}/metadata.)