[Init] Initial commit - NetMesh terminal manager

application/state/systemManagerTabLayout.ts

@@ -0,0 +1,25 @@
+import type { SystemManagerSubTab } from '../../domain/systemManager/types';
+import type { ToolbarItemLayoutDefaults } from '../../domain/toolbarItemLayout';
+
+/** Canonical System Manager sub-tab order (all known sections). */
+export const SYSTEM_MANAGER_TAB_DEFAULT_ORDER: readonly SystemManagerSubTab[] = [
+  'overview',
+  'processes',
+  'ports',
+  'services',
+  'tmux',
+  'docker',
+  'gpu',
+] as const;
+
+/**
+ * Persistable layout defaults for System Manager sub-tabs.
+ * Overview is locked so the panel never loses every reachable section.
+ */
+export const SYSTEM_MANAGER_TAB_LAYOUT_DEFAULTS: ToolbarItemLayoutDefaults = {
+  order: [...SYSTEM_MANAGER_TAB_DEFAULT_ORDER],
+  placement: Object.fromEntries(
+    SYSTEM_MANAGER_TAB_DEFAULT_ORDER.map((id) => [id, 'show' as const]),
+  ),
+  lockedIds: ['overview'],
+};