- Reworks the proxy registration loop into a struct (so I can add a `RegisterNow` method)
- Changes the proxy registration loop interval to 15s (previously 30s)
- Adds test which tests bidirectional DERP meshing on all possible paths between 6 workspace proxy replicas
Related to https://github.com/coder/customers/issues/438
- Adds a new query BatchUpdateLastUsedAt
- Adds calls to BatchUpdateLastUsedAt in app stats handler upon flush
- Passes a stats flush channel to apptest setup scaffolding and updates unit tests to assert modifications to LastUsedAt.
* chore: add /v2 to import module path
go mod requires semantic versioning with versions greater than 1.x
This was a mechanical update by running:
```
go install github.com/marwan-at-work/mod/cmd/mod@latest
mod upgrade
```
Migrate generated files to import /v2
* Fix gen
