Refactor backend to use request-scoped SQLite connections

backend/app/routers/jails.py

@@ -23,7 +23,7 @@ from typing import Annotated
 
 from fastapi import APIRouter, Body, HTTPException, Path, Request, status
 
-from app.dependencies import AuthDep
+from app.dependencies import AuthDep, DbDep
 from app.models.ban import JailBannedIpsResponse
 from app.models.jail import (
     IgnoreIpRequest,
@@ -557,6 +557,7 @@ async def toggle_ignore_self(
 async def get_jail_banned_ips(
     request: Request,
     _auth: AuthDep,
+    db: DbDep,
     name: _NamePath,
     page: int = 1,
     page_size: int = 25,
@@ -597,7 +598,6 @@ async def get_jail_banned_ips(
 
     socket_path: str = request.app.state.settings.fail2ban_socket
     http_session = getattr(request.app.state, "http_session", None)
-    app_db = getattr(request.app.state, "db", None)
 
     try:
         return await jail_service.get_jail_banned_ips(
@@ -608,7 +608,7 @@ async def get_jail_banned_ips(
             search=search,
             geo_batch_lookup=geo_service.lookup_batch,
             http_session=http_session,
-            app_db=app_db,
+            app_db=db,
         )
     except JailNotFoundError:
         raise _not_found(name) from None