The 'userOIDC' method body was getting unwieldy.
I think there is a good way to redesign the flow, but
I do not want to undertake that at this time.
The easy win is just to move some LoC to other methods
and cleanup the main method.
Drop "New" and "Builder" from the function names, in favor of the top-level resource created. This shortens tests and gives a nice syntax. Since everything is a builder, the prefix and suffix don't add much value and just make things harder to read.
I've also chosen to leave `Do()` as the function to insert into the database. Even though it's a builder pattern, I fear `.Build()` might be confusing with Workspace Builds. One other idea is `Insert()` but if we later add dbfake functions that update, this might be inconsistent.
I noticed we have been overusing colors in the UI, so simplifying is better for the "look and feel" and maintaining the styles over time.

If you want to have a better sense of what it looks like, I recommend you go to the Chromatic snapshot.
- Updates plugin staleness check to check mtime instead of atime, as atime has been shown to be unreliable
- Updates existing unit test to use a real filesystem as Afero's in-memory FS doesn't support atimes at all
Convert to builder for consistency with rest of the package. This will make it easier to use, and means we can drop "Builder" from function arguments since they are all builders in the package.
* Adds workspace proxy section to health page
* Conditionally places workspace proxy warnings in errors or warnings based on calculated severity
* Adds some more stories we were missing for HealthPage
Fixes#10799
The flake happens when we try to remote forward, but the port we've chosen is not free. In the flaked example, it's actually the SSH listener that occupies the port we try to remote forward, leading to confusing reads (c.f. the linked issue).
This fix simplies the tests considerably by using the Go ssh client, rather than shelling out to OpenSSH. This avoids using a pseudoterminal, avoids the need for starting any local OS listeners to communicate the forwarding (go SSH just returns in-process listeners), and avoids an OS listener to wire OpenSSH up to the agentConn.
With the simplied logic, we can immediately tell if a remote forward on a random port fails, so we can do this in a loop until success or timeout.
I've also simplified and fixed up the other forwarding tests. Since we set up forwarding in-process with Go ssh, we can remove a lot of the `require.Eventually` logic.
- Adds a template_insights pseudo-resource
- Grants auditor and template admin roles read access on template_insights
- Updates existing RBAC checks to check for read template_insights, falling back to template update permissions where necessary
- Updates TemplateLayout to show Insights tab if can read template_insights or can update template
Adds a health check for workspace proxies:
- Healthy iff all proxies are healthy and the same version,
- Warning if some proxies are unhealthy,
- Error if all proxies are unhealthy, or do not all have the same version.