Major cleanup and refactoring of the backend (frontend not fully updated).

passkey/db/__init__.py

@@ -0,0 +1,50 @@
+"""
+Database module for WebAuthn passkey authentication.
+
+This module provides dataclasses and database abstractions for managing
+users, credentials, and sessions in a WebAuthn authentication system.
+"""
+
+from dataclasses import dataclass
+from datetime import datetime
+from uuid import UUID
+
+
+@dataclass
+class User:
+    """User data structure."""
+
+    user_uuid: UUID
+    user_name: str
+    created_at: datetime | None = None
+    last_seen: datetime | None = None
+    visits: int = 0
+
+
+@dataclass
+class Credential:
+    """Credential data structure."""
+
+    uuid: UUID
+    credential_id: bytes
+    user_uuid: UUID
+    aaguid: UUID
+    public_key: bytes
+    sign_count: int
+    created_at: datetime
+    last_used: datetime | None = None
+    last_verified: datetime | None = None
+
+
+@dataclass
+class Session:
+    """Session data structure."""
+
+    key: bytes
+    user_uuid: UUID
+    expires: datetime
+    credential_uuid: UUID | None = None
+    info: dict | None = None
+
+
+__all__ = ["User", "Credential", "Session"]