Unify app insights clusters for various engsys services

Especially for webhook router and check enforcer, two services which have a lot of cross talk and shared operation IDs, it would be easier to be able to query these services from a single app insights/log analytics page, in addition to being able to define dashboards from one backing source.

Review the webhook router and check enforcer telemetry and service configuration first, focusing on how their shared operation IDs and cross-talk are represented in Application Insights and Log Analytics. Done means both services can be queried from one backing source and dashboards can be defined there.

Written by the indexing model from the issue text.