update branch

.gitignore

@@ -1 +1,66 @@
-Nothing should be ignored since only a source file (`backend/app/main.py`) was modified and there are no build artifacts, dependencies, or temporary files in the changes.
+```
+# Compiled and build artifacts
+*.pyc
+__pycache__/
+*.o
+*.obj
+dist/
+build/
+target/
+
+# Dependencies
+.venv/
+venv/
+node_modules/
+.mypy_cache/
+.pytest_cache/
+.gradle/
+
+# Logs and temp files
+*.log
+*.tmp
+*.swp
+*.swo
+
+# Environment
+.env
+.env.local
+*.env.*
+
+# Editors
+.vscode/
+.idea/
+
+# System files
+.DS_Store
+Thumbs.db
+
+# Coverage
+coverage/
+htmlcov/
+.coverage
+
+# Compressed files
+*.zip
+*.gz
+*.tar
+*.tgz
+*.bz2
+*.xz
+*.7z
+*.rar
+*.zst
+*.lz4
+*.lzh
+*.cab
+*.arj
+*.rpm
+*.deb
+*.Z
+*.lz
+*.lzo
+*.tar.gz
+*.tar.bz2
+*.tar.xz
+*.tar.zst
+```