Add Git LFS pre-push hook to Overcommit

- Ensures LFS objects are pushed automatically with commits
- Prevents CI/CD failures due to missing LFS objects
- Works correctly with forks and different remotes

Author: crmne

.overcommit.yml

@@ -24,6 +24,12 @@ PreCommit:
     description: 'Update appraisal gemfiles'
     command: ['bundle', 'exec', 'appraisal', 'update']
 
+PrePush:
+  GitLfs:
+    enabled: true
+    description: 'Push LFS objects to remote'
+    command: ['bash', '-c', 'git lfs pre-push "$@"', '--']
+
 PostCheckout:
   ALL: # Special hook name that customizes all hooks of this type
     quiet: true # Change all post-checkout hooks to only display output on failure