feat(auth): support trusted device (#52)

New API to maintain sessions and devices:

- GET /api/private/admin/sessions
- DELETE /api/private/admin/sessions/{session_id}
- GET /api/private/admin/trusted-devices
- DELETE /api/private/admin/trusted-devices/{device_id}

Auth:

web clients request `/oauth/token` and `/api/v2/session/verify` with `X-UUID` header to save the client as trusted device.

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Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

app/dependencies/user_agent.py

@@ -0,0 +1,15 @@
+from __future__ import annotations
+
+from typing import Annotated
+
+from app.models.model import UserAgentInfo as UserAgentInfoModel
+from app.utils import extract_user_agent
+
+from fastapi import Depends, Header
+
+
+def get_user_agent_info(user_agent: str | None = Header(None, include_in_schema=False)) -> UserAgentInfoModel:
+    return extract_user_agent(user_agent)
+
+
+UserAgentInfo = Annotated[UserAgentInfoModel, Depends(get_user_agent_info)]