Initial commit: Add playlist downloader project with UI and core functionality

.gitignore

@@ -0,0 +1,64 @@
+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+pip-wheel-metadata/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# Virtual environments
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# Environment variables
+.env
+.env.local
+.env.*.local
+
+# OS
+.DS_Store
+Thumbs.db
+*.log
+
+# Build artifacts
+*.spec
+*.exe
+*.dll
+*.so
+
+# FFmpeg (third-party binary, typically not committed)
+ffmpeg/bin/
+ffmpeg/doc/
+ffmpeg/presets/
+
+# Project specific
+*.json.bak
+downloads/