Initialize project

.gitignore

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+# === General & OS ===
+.DS_Store
+.AppleDouble
+.LSOverride
+Thumbs.db
+ehthumbs.db
+desktop.ini
+*.log
+.vscode/
+.idea/
+*.swp
+*.swo
+
+# === Frontend (Node/Vue/Vite) ===
+frontend/node_modules/
+frontend/dist/
+frontend/.env
+frontend/.env.local
+frontend/.env.*.local
+frontend/npm-debug.log*
+frontend/yarn-debug.log*
+frontend/yarn-error.log*
+frontend/pnpm-debug.log*
+frontend/coverage/
+frontend/.nyc_output/
+
+# === Backend (Python/FastAPI) ===
+backend/__pycache__/
+*.py[cod]
+*$py.class
+
+# Virtual Environments
+backend/venv/
+backend/.venv/
+backend/env/
+backend/ENV/
+
+# Distribution / Build
+backend/build/
+backend/dist/
+backend/*.egg-info/
+.eggs/
+backend/.eggs/
+
+# Testing & Coverage
+backend/.coverage
+backend/htmlcov/
+backend/.pytest_cache/
+backend/.mypy_cache/
+backend/coverage.xml
+
+# Local Settings & Secrets
+backend/.env
+backend/instance/
+
+# Databases
+*.sqlite3
+*.db
+*.sqlite
+
+# === Project Specific ===
+# Temporary file uploads (auto-cleaned)
+backend/temp_uploads/