fix(team-mode): gate tmux layout cleanup by config

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

src/features/team-mode/team-runtime/delete-team.ts

@@ -86,7 +86,7 @@ export async function deleteTeam(
     }
   }
 
-  const removedLayout = tmuxMgr !== undefined && canVisualize()
+  const removedLayout = config.tmux_visualization && tmuxMgr !== undefined && canVisualize()
   if (removedLayout) {
     const memberPaneIds = runtimeState.members
       .filter((member) => member.agentType !== "leader" && member.tmuxPaneId)

src/features/team-mode/team-runtime/shutdown.test.ts

@@ -305,7 +305,7 @@ describe("team-runtime shutdown", () => {
     // when
     const result = await deleteTeam(
       fixture.teamRunId,
-      fixture.config,
+      { ...fixture.config, tmux_visualization: true },
       { getServerUrl: () => "http://localhost" } as never,
       undefined,
       { force: true },
@@ -325,6 +325,29 @@ describe("team-runtime shutdown", () => {
     )
   })
 
+  test("#given tmux manager but visualization disabled #when deleteTeam runs #then layout cleanup is skipped", async () => {
+    // given
+    const fixture = await createFixture()
+    temporaryDirectories.push(fixture.baseDir)
+    spyOn(layoutModule, "canVisualize").mockReturnValue(true)
+    const removeLayoutSpy = spyOn(layoutModule, "removeTeamLayout").mockResolvedValue(undefined)
+    await updateMemberStatuses(fixture.teamRunId, fixture.config, {
+      "member-a": "shutdown_approved",
+      "member-b": "completed",
+    })
+
+    // when
+    const result = await deleteTeam(
+      fixture.teamRunId,
+      { ...fixture.config, tmux_visualization: false },
+      { getServerUrl: () => "http://localhost" } as never,
+    )
+
+    // then
+    expect(result.removedLayout).toBe(false)
+    expect(removeLayoutSpy).not.toHaveBeenCalled()
+  })
+
   test("cancels team background tasks before deleting when force=true", async () => {
     // given
     const fixture = await createFixture()