✨ feat(vscode): 设置可关新开终端分屏

vscode/src/panel/handlers/terminals.test.ts

@@ -0,0 +1,11 @@
+import { describe, expect, it } from 'vitest'
+import { terminalEditorColumn } from '../terminalColumn'
+
+describe('terminalEditorColumn', () => {
+  it('分屏 → 右侧第 2 栏', () => {
+    expect(terminalEditorColumn(true)).toBe(2)
+  })
+  it('不分屏 → 当前栏（只加标签）', () => {
+    expect(terminalEditorColumn(false)).toBe(-1)
+  })
+})