feat(11-01): run job workers in serve and queue:work, add queue:clear

- Manager gains the apparatus JobManager surface: StartJob, UpdateJobState,
  UpdateMetadata, FailJob, CancelJob (is_canceled + STOPPED + River JobCancel),
  StopJob (STOPPED only), CheckIfCanceled and GetMetadata, all raw column
  writes so updated_at is untouched
- serve starts the in-process worker unless queue.work_in_serve is false and
  stops it on shutdown; an app without jobs gets an idle worker
- queue:work runs a foreground worker with repeatable --queue filters;
  queue:clear deletes available, scheduled and retryable jobs of one queue
- the generated main appends conga.RuntimeCommands; summer delegates
  queue:work and queue:clear; make:job scaffolds a conga.Job

examples/hello/main.go

@@ -9,7 +9,9 @@ import (
 
 	"git.golem15.com/golem15/summercms/modules/backpack"
 	"git.golem15.com/golem15/summercms/modules/bonfire"
+	"git.golem15.com/golem15/summercms/modules/cabana"
 	"git.golem15.com/golem15/summercms/modules/compass"
+	"git.golem15.com/golem15/summercms/modules/conga"
 	"git.golem15.com/golem15/summercms/modules/lagoon"
 	"git.golem15.com/golem15/summercms/modules/pact"
 	"git.golem15.com/golem15/summercms/modules/party"
@@ -34,7 +36,10 @@ func run(args []string, out io.Writer) error {
 		return err
 	}
 	commands := lagoon.RuntimeCommands(app, plugins)
+	commands = append(commands, conga.RuntimeCommands(app, plugins)...)
 	commands = append(commands, surf.ServeCommand(app, plugins))
+	commands = append(commands, surf.RouteListCommand(app, plugins))
+	commands = append(commands, cabana.RuntimeCommands(app)...)
 	for _, plugin := range plugins {
 		if hasCommands, ok := plugin.(pact.HasCommands); ok {
 			commands = append(commands, hasCommands.Commands()...)