Refactor backend to use request-scoped SQLite connections

backend/app/routers/dashboard.py

@@ -20,7 +20,7 @@ if TYPE_CHECKING:
 from fastapi import APIRouter, Query, Request
 
 from app import __version__
-from app.dependencies import AuthDep
+from app.dependencies import AuthDep, DbDep
 from app.models.ban import (
     BanOrigin,
     BansByCountryResponse,
@@ -82,6 +82,7 @@ async def get_server_status(
 async def get_dashboard_bans(
     request: Request,
     _auth: AuthDep,
+    db: DbDep,
     range: TimeRange = Query(default=_DEFAULT_RANGE, description="Time-range preset."),
     source: Literal["fail2ban", "archive"] = Query(
         default="fail2ban",
@@ -125,7 +126,7 @@ async def get_dashboard_bans(
         page=page,
         page_size=page_size,
         http_session=http_session,
-        app_db=request.app.state.db,
+        app_db=db,
         geo_batch_lookup=geo_service.lookup_batch,
         origin=origin,
     )
@@ -139,6 +140,7 @@ async def get_dashboard_bans(
 async def get_bans_by_country(
     request: Request,
     _auth: AuthDep,
+    db: DbDep,
     range: TimeRange = Query(default=_DEFAULT_RANGE, description="Time-range preset."),
     source: Literal["fail2ban", "archive"] = Query(
         default="fail2ban",
@@ -181,7 +183,7 @@ async def get_bans_by_country(
         http_session=http_session,
         geo_cache_lookup=geo_service.lookup_cached_only,
         geo_batch_lookup=geo_service.lookup_batch,
-        app_db=request.app.state.db,
+        app_db=db,
         origin=origin,
         country_code=country_code,
     )
@@ -195,6 +197,7 @@ async def get_bans_by_country(
 async def get_ban_trend(
     request: Request,
     _auth: AuthDep,
+    db: DbDep,
     range: TimeRange = Query(default=_DEFAULT_RANGE, description="Time-range preset."),
     source: Literal["fail2ban", "archive"] = Query(
         default="fail2ban",
@@ -235,7 +238,7 @@ async def get_ban_trend(
         socket_path,
         range,
         source=source,
-        app_db=request.app.state.db,
+        app_db=db,
         origin=origin,
     )
 
@@ -248,6 +251,7 @@ async def get_ban_trend(
 async def get_bans_by_jail(
     request: Request,
     _auth: AuthDep,
+    db: DbDep,
     range: TimeRange = Query(default=_DEFAULT_RANGE, description="Time-range preset."),
     source: Literal["fail2ban", "archive"] = Query(
         default="fail2ban",
@@ -281,6 +285,6 @@ async def get_bans_by_jail(
         socket_path,
         range,
         source=source,
-        app_db=request.app.state.db,
+        app_db=db,
         origin=origin,
     )