Next-Gen WAF: Add account-level requests endpoint

apiadded

The Next-Gen WAF Requests API now includes an account-level endpoint for searching requests using GET /ngwaf/v1/requests. This allows you to search for requests across all workspaces in your account, with each result including a workspace_id field to identify which workspace the request belongs to.

Prior change: Next-Gen WAF: New block_immediately threshold action

Following change: Next-Gen WAF: Added detector_scope to simulator signal responses