chore: tailnet debug logging (#7260)

* Enable discovery (disco) debug

Signed-off-by: Spike Curtis <spike@coder.com>

* Better debug on reconnectingPTY

Signed-off-by: Spike Curtis <spike@coder.com>

* Agent logging in appstest

Signed-off-by: Spike Curtis <spike@coder.com>

* More reconnectingPTY logging

Signed-off-by: Spike Curtis <spike@coder.com>

* Add logging to coordinator

Signed-off-by: Spike Curtis <spike@coder.com>

* Update agent/agent.go

Co-authored-by: Mathias Fredriksson <mafredri@gmail.com>

* Update agent/agent.go

Co-authored-by: Mathias Fredriksson <mafredri@gmail.com>

* Update agent/agent.go

Co-authored-by: Mathias Fredriksson <mafredri@gmail.com>

* Update agent/agent.go

Co-authored-by: Mathias Fredriksson <mafredri@gmail.com>

* Clarify logs; remove unrelated changes

Signed-off-by: Spike Curtis <spike@coder.com>

---------

Signed-off-by: Spike Curtis <spike@coder.com>
Co-authored-by: Mathias Fredriksson <mafredri@gmail.com>

coderd/workspaceapps/apptest/setup.go

@@ -16,6 +16,7 @@ import (
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 
+	"cdr.dev/slog"
 	"cdr.dev/slog/sloggers/slogtest"
 	"github.com/coder/coder/agent"
 	"github.com/coder/coder/coderd/coderdtest"
@@ -364,7 +365,7 @@ func createWorkspaceWithApps(t *testing.T, client *codersdk.Client, orgID uuid.U
 	}
 	agentCloser := agent.New(agent.Options{
 		Client: agentClient,
-		Logger: slogtest.Make(t, nil).Named("agent"),
+		Logger: slogtest.Make(t, nil).Named("agent").Leveled(slog.LevelDebug),
 	})
 	t.Cleanup(func() {
 		_ = agentCloser.Close()