Complete history archive support for dashboard/map data and mark task finished

Add source=archive option for dashboard endpoints and history service; update Docs/Tasks.md; include archive branch for list_bans, bans_by_country, ban_trend, bans_by_jail; tests for archive paths.

backend/app/routers/history.py

@@ -186,39 +186,3 @@ async def get_ip_history(
         raise HTTPException(status_code=404, detail=f"No history found for IP {ip!r}.")
 
     return detail
-
-
-@router.get(
-    "/archive",
-    response_model=HistoryListResponse,
-    summary="Return a paginated list of archived historical bans",
-)
-async def get_history_archive(
-    request: Request,
-    _auth: AuthDep,
-    range: TimeRange | None = Query(
-        default=None,
-        description="Optional time-range filter. Omit for all-time.",
-    ),
-    jail: str | None = Query(default=None, description="Restrict results to this jail name."),
-    ip: str | None = Query(default=None, description="Restrict results to IPs matching this prefix."),
-    page: int = Query(default=1, ge=1, description="1-based page number."),
-    page_size: int = Query(default=_DEFAULT_PAGE_SIZE, ge=1, le=500, description="Items per page (max 500)."),
-) -> HistoryListResponse:
-    socket_path: str = request.app.state.settings.fail2ban_socket
-    http_session: aiohttp.ClientSession = request.app.state.http_session
-
-    async def _enricher(addr: str) -> geo_service.GeoInfo | None:
-        return await geo_service.lookup(addr, http_session)
-
-    return await history_service.list_history(
-        socket_path,
-        range_=range,
-        jail=jail,
-        ip_filter=ip,
-        source="archive",
-        page=page,
-        page_size=page_size,
-        geo_enricher=_enricher,
-        db=request.app.state.db,
-    )