docs: update Alerts, Checks, and Integrations documentation to reflect recent changes in alert handling and integration types - Enhanced Alerts documentation to clarify the distinction between Internal and External alerts, including new properties and escalation policies. - Revised DNS Check documentation to explain the new behavior regarding partial name server failures and alert configurations. - Updated GCP Cloud Run Job Check documentation to specify the need for a Google Cloud integration and clarify the check's classification of DEGRADED. - Modified HTTP Check documentation to indicate that latency thresholds are now managed through Alert Configs rather than the check itself. - Adjusted SSL Check documentation to reflect the shift of severity thresholds to Alert Configs. - Added a new Integrations documentation page detailing the types of integrations, their properties, and the setup process for the GCP Cloud Monitoring webhook. - Updated Overview documentation to mention that alerts can also originate from inbound integrations. - Included Integrations in the sidebar for easier navigation.

cl8dep committed Jul 18, 2026