feat: match settings card width to ops map and add backup download

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/api/routes/settings.py

@@ -6,6 +6,7 @@ import re
 import time
 
 from fastapi import APIRouter, Depends, HTTPException
+from fastapi.responses import FileResponse
 from pydantic import BaseModel, Field
 
 from apps.api.auth import auth_disabled, require_auth, verify_credentials
@@ -150,6 +151,22 @@ def create_backup(body: BackupActionBody) -> dict:
     }
 
 
+@router.get("/backup/download/{backup_name}")
+def download_backup(backup_name: str) -> FileResponse:
+    s = get_settings()
+    try:
+        path = resolve_backup_file(s.backup_dir_path, backup_name.strip())
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e)) from e
+    except FileNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e)) from e
+    return FileResponse(
+        path=str(path),
+        filename=path.name,
+        media_type="application/octet-stream",
+    )
+
+
 @router.post("/restore")
 def restore_backup(body: RestoreBody) -> dict:
     _verify_password_or_401(body.current_password)