Improve command center keyboard navigation and new tab shortcut

packages/app/src/keyboard/keyboard-shortcuts.test.ts

@@ -152,8 +152,9 @@ describe("keyboard-shortcuts", () => {
       payload: { delta: 1 },
     },
     {
-      name: "matches Alt+Shift+T to open new tab",
-      event: { key: "T", code: "KeyT", altKey: true, shiftKey: true },
+      name: "matches Mod+T to open new tab",
+      event: { key: "t", code: "KeyT", metaKey: true },
+      context: { isMac: true },
       action: "workspace.tab.new",
     },
     {
@@ -222,6 +223,10 @@ describe("keyboard-shortcuts", () => {
       event: { key: "n", code: "KeyN", metaKey: true, altKey: true },
       context: { isMac: true },
     },
+    {
+      name: "does not keep old Alt+Shift+T binding",
+      event: { key: "T", code: "KeyT", altKey: true, shiftKey: true },
+    },
     {
       name: "does not match question-mark shortcut inside editable scopes",
       event: { key: "?", code: "Slash", shiftKey: true },
@@ -269,6 +274,7 @@ describe("keyboard-shortcut help sections", () => {
       context: { isMac: true, isTauri: false },
       expectedKeys: {
         "new-agent": ["mod", "shift", "O"],
+        "workspace-tab-new": ["mod", "T"],
         "workspace-jump-index": ["alt", "1-9"],
         "workspace-tab-jump-index": ["alt", "shift", "1-9"],
         "workspace-tab-close-current": ["alt", "shift", "W"],
@@ -279,6 +285,7 @@ describe("keyboard-shortcut help sections", () => {
       context: { isMac: true, isTauri: true },
       expectedKeys: {
         "new-agent": ["mod", "shift", "O"],
+        "workspace-tab-new": ["mod", "T"],
         "workspace-jump-index": ["mod", "1-9"],
         "workspace-tab-jump-index": ["alt", "1-9"],
         "workspace-tab-close-current": ["mod", "W"],

packages/app/src/keyboard/keyboard-shortcuts.ts

@@ -138,20 +138,19 @@ const SHORTCUT_BINDINGS: readonly KeyboardShortcutBinding[] = [
     },
   },
   {
-    id: "workspace-tab-new-alt-shift-t",
+    id: "workspace-tab-new-mod-t",
     action: "workspace.tab.new",
     matches: (event) =>
-      !event.metaKey &&
-      !event.ctrlKey &&
-      event.altKey &&
-      event.shiftKey &&
+      isMod(event) &&
+      !event.altKey &&
+      !event.shiftKey &&
       (event.code === "KeyT" || event.key.toLowerCase() === "t"),
     when: (context) => !context.commandCenterOpen,
     help: {
       id: "workspace-tab-new",
       section: "global",
       label: "New agent tab",
-      keys: ["alt", "shift", "T"],
+      keys: ["mod", "T"],
     },
   },
   {