Fixes test flakes _a la_
```
t.go:108: 2024-11-05 09:52:37.996 [erro] workspacestats: failed to load template schedule bumping activity, defaulting to bumping by 60min request_id=f14215d2-73dc-47ba-aa81-422c62f257e4 workspace_id=545d73c7-3a62-4466-8c08-b6abb12867b7 template_id=49747428-3abb-40e4-a6b2-03653e9f2506 ...
error= fetch object:
github.com/coder/coder/v2/coderd/database/dbauthz.(*querier).GetTemplateByID.fetch[...].func1
/home/runner/work/coder/coder/coderd/database/dbauthz/dbauthz.go:497
- pq: canceling statement due to user request
*** slogtest: log detected at level ERROR; TEST FAILURE ***
```
seen here on main: https://github.com/coder/coder/actions/runs/11681605747/job/32527006174
We currently send empty payloads to pubsub channels of the form `workspace:<workspace_id>` to notify listeners of updates to workspaces (such as for refreshing the workspace dashboard).
To support https://github.com/coder/coder/issues/14716, we'll instead send `WorkspaceEvent` payloads to pubsub channels of the form `workspace_owner:<owner_id>`. This enables a listener to receive events for all workspaces owned by a user.
This PR replaces the usage of the old channels without modifying any existing behaviors.
```
type WorkspaceEvent struct {
Kind WorkspaceEventKind `json:"kind"`
WorkspaceID uuid.UUID `json:"workspace_id" format:"uuid"`
// AgentID is only set for WorkspaceEventKindAgent* events
// (excluding AgentTimeout)
AgentID *uuid.UUID `json:"agent_id,omitempty" format:"uuid"`
}
```
We've defined `WorkspaceEventKind`s based on how the old channel was used, but it's not yet necessary to inspect the types of any of the events, as the existing listeners are designed to fire off any of them.
```
WorkspaceEventKindStateChange WorkspaceEventKind = "state_change"
WorkspaceEventKindStatsUpdate WorkspaceEventKind = "stats_update"
WorkspaceEventKindMetadataUpdate WorkspaceEventKind = "mtd_update"
WorkspaceEventKindAppHealthUpdate WorkspaceEventKind = "app_health"
WorkspaceEventKindAgentLifecycleUpdate WorkspaceEventKind = "agt_lifecycle_update"
WorkspaceEventKindAgentLogsUpdate WorkspaceEventKind = "agt_logs_update"
WorkspaceEventKindAgentConnectionUpdate WorkspaceEventKind = "agt_connection_update"
WorkspaceEventKindAgentLogsOverflow WorkspaceEventKind = "agt_logs_overflow"
WorkspaceEventKindAgentTimeout WorkspaceEventKind = "agt_timeout"
```
Part of https://github.com/coder/coder/issues/15176
I originally kept this the same because I wanted to be conservative
about when we start dropping activity, but this is proving to be a
problem when using `coder ssh` with `--usage-app=disabled`. Because the
workspace agent still counts this as a connection (I think it still
should so it's counted somewhere) but not as a SSH / IDE session. This
leads to background ssh tasks that want to be untracked still continuing
to bump activity when it shouldn't. This makes it so we have to have an
explicit session to bump activity.
