Add .gitignore file to exclude unnecessary files and directories

.gitignore

@@ -0,0 +1,98 @@
+# ==========================================
+# HuggingFace CrownCode Backend - .gitignore
+# ==========================================
+
+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+venv/
+env/
+ENV/
+.venv/
+.env
+.env.*
+!.env.example
+
+# Build/Distribution
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+
+# Testing
+.pytest_cache/
+.coverage
+htmlcov/
+.tox/
+.nox/
+coverage.xml
+*.cover
+*.py,cover
+
+# Type checking
+.mypy_cache/
+.dmypy.json
+dmypy.json
+.pyre/
+.pytype/
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# Logs
+*.log
+logs/
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Temporary files
+tmp/
+temp/
+*.tmp
+*.bak
+*.backup
+
+# Models and large files (keep for HF Spaces)
+# Uncomment if you want to ignore models locally
+# *.pth
+# *.pt
+# *.ckpt
+# *.safetensors
+# *.h5
+# *.pkl
+
+# Audio/Video files (if any during development)
+*.wav
+*.mp3
+*.flac
+*.mp4
+*.avi
+
+# Jupyter Notebooks checkpoints
+.ipynb_checkpoints/
+
+# Secrets
+secrets/
+credentials/
+*.pem
+*.key