🔧 Update .gitignore to exclude video files and cache

- Exclude *.mp4 files from version control
- Exclude __pycache__/ directories
- Exclude temporary files and outputs

.gitignore

@@ -0,0 +1,10 @@
+
+# Exclude video files and cache
+*.mp4
+__pycache__/
+*.pyc
+*.pyo
+.DS_Store
+temp/
+outputs/*.mp4
+samples/*.mp4