waitForTaskIdle used time.NewTicker(5s) which delays the first poll
by 5 seconds. Debugger tracing proved the failure mechanism: on slow
CI (Windows), the first poll at 5s sees "working" (idle patch has not
landed due to goroutine scheduling), needs poll #2 at 10s, but the
25s context expires before it fires.
Two changes:
1. Use r.clock.NewTicker (quartz) with time.Nanosecond initial
interval and Reset(5s) for immediate first poll. Tests inject a
mock clock via clitest.NewWithClock for deterministic control.
2. Rewrite WaitsForWorkingAppState test with quartz traps
(NewTicker + TickerReset) for deterministic synchronization
instead of racing goroutines. Fix PausedDuringWaitForReady
sync point.
Closes DEVEX-381
Context was created before expensive setup operations (building
workspaces, starting agents), leaving insufficient time for the actual
command execution. Split into setupCtx for setup and a fresh ctx for
the command to ensure both get the full timeout.
Fixes all our Go file imports to match the preferred spec that we've _mostly_ been using. For example:
```
import (
"context"
"time"
"github.com/prometheus/client_golang/prometheus"
"golang.org/x/xerrors"
"gopkg.in/natefinch/lumberjack.v2"
"cdr.dev/slog/v3"
"github.com/coder/coder/v2/codersdk/agentsdk"
"github.com/coder/serpent"
)
```
3 groups: standard library, 3rd partly libs, Coder libs.
This PR makes the change across the codebase. The PR in the stack above modifies our formatting to maintain this state of affairs, and is a separate PR so it's possible to review that one in detail.
## Overview
This change promotes the tasks CLI commands from `coder exp task` to
`coder task`, marking them as generally available (GA).
## Migration
Users will need to update their scripts from:
```shell
coder exp task create "my task"
```
To:
```shell
coder task create "my task"
```
---
🤖 This change was written by Claude Sonnet 4.5 Thinking using [mux](https://github.com/coder/mux) and reviewed by a human 🏄🏻♂️
Mathias Fredriksson