Refactor golden image handling in backup upload process</message>

<message>Update the _set_golden_from_path function to improve the handling of existing golden image files. Replace the existing unlink logic with a more robust method that safely removes files or broken symlinks using the missing_ok parameter. This change enhances the reliability of the backup upload process by ensuring that stale references are properly cleared before setting a new golden image path.

backup-from-device/gnss-guard/tm-gnss-guard/server/requirements.txt

@@ -0,0 +1,28 @@
+# GNSS Guard Server Dependencies
+
+# Web framework
+fastapi>=0.104.0
+uvicorn[standard]>=0.24.0
+
+# Database
+sqlalchemy>=2.0.0
+psycopg2-binary>=2.9.9  # PostgreSQL driver
+alembic>=1.12.0  # Database migrations (optional)
+
+# Configuration
+pydantic>=2.5.0
+pydantic-settings>=2.1.0
+python-dotenv>=1.0.0
+
+# Templates and static files
+jinja2>=3.1.2
+python-multipart>=0.0.6  # For form data
+
+# Security
+passlib[bcrypt]>=1.7.4  # Password hashing
+slowapi>=0.1.9  # Rate limiting
+
+# HTTP client (for health checks and Telegram API)
+httpx>=0.25.0
+requests>=2.31.0
+