Initial WireGuard admin panel: FastAPI UI, peer key management, live monitoring, Docker deploy

Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>

app/crypto.py

@@ -0,0 +1,19 @@
+import base64
+import hashlib
+
+from cryptography.fernet import Fernet
+
+from .config import settings
+
+
+def _fernet() -> Fernet:
+    digest = hashlib.sha256(settings.secret_key.encode()).digest()
+    return Fernet(base64.urlsafe_b64encode(digest))
+
+
+def encrypt(value: str) -> str:
+    return _fernet().encrypt(value.encode()).decode()
+
+
+def decrypt(value: str) -> str:
+    return _fernet().decrypt(value.encode()).decode()