Add model directory .gitkeep files

[glenn-jocher]

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

📁 Adds placeholder .gitkeep files to ensure all YOLO model directories are tracked in the iOS app repo.

📊 Key Changes

• ✅ Created .gitkeep files in YOLOiOSApp/Models/ subfolders: Classify/, Detect/, OBB/, Pose/, and Segment/
• 🗂️ Ensures these empty directories are included in Git even when no model files are present

🎯 Purpose & Impact

• 🚀 Improves developer experience by keeping the expected project folder structure intact after cloning the repo
• 🔧 Reduces setup friction and confusion (no missing Models/* folders when model assets haven’t been added yet)
• 📦 Helps future updates/documentation by providing consistent paths for dropping in model files across tasks (classification, detection, OBB, pose, segmentation)

[UltralyticsAssistant]

👋 Hello @glenn-jocher, thank you for submitting a ultralytics/yolo-ios-app 🚀 PR! To ensure a seamless integration of your work, please review the following checklist:

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[UltralyticsAssistant]

🔍 PR Review

_{Made with ❤️ by Ultralytics Actions}

Clean PR. Adding .gitkeep files to track empty directories is appropriate and no issues detected.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

📢 Thoughts on this report? Let us know!

[UltralyticsAssistant]

Merged—nice work @glenn-jocher! Thanks for tightening up the repo by adding .gitkeep placeholders so every YOLOiOSApp/Models/* folder stays visible and consistent after a fresh clone. That small structural touch removes a lot of “why is this missing?” friction and makes it effortless for developers to drop in models for Classify/Detect/OBB/Pose/Segment.

“If I have seen further it is by standing on the shoulders of giants.” — Isaac Newton

This PR is a perfect example of that idea in practice: solid foundations help everyone move faster and build with confidence. Appreciate you keeping the iOS app experience smooth and future-proof for the community.