fix(tui): default Ctrl+Z to undo on Windows (#21138)

packages/opencode/src/cli/cmd/tui/app.tsx

@@ -761,6 +761,7 @@ function App(props: { onSnapshot?: () => Promise<string[]> }) {
       keybind: "terminal_suspend",
       category: "System",
       hidden: true,
+      enabled: tuiConfig.keybinds?.terminal_suspend !== "none",
       onSelect: () => {
         process.once("SIGCONT", () => {
           renderer.resume()

packages/opencode/src/cli/cmd/tui/feature-plugins/home/tips-view.tsx

@@ -148,5 +148,7 @@ const TIPS = [
   "Use {highlight}/review{/highlight} to review uncommitted changes, branches, or PRs",
   "Run {highlight}/help{/highlight} or {highlight}Ctrl+X H{/highlight} to show the help dialog",
   "Use {highlight}/rename{/highlight} to rename the current session",
-  "Press {highlight}Ctrl+Z{/highlight} to suspend the terminal and return to your shell",
+  ...(process.platform === "win32"
+    ? ["Press {highlight}Ctrl+Z{/highlight} to undo changes in your prompt"]
+    : ["Press {highlight}Ctrl+Z{/highlight} to suspend the terminal and return to your shell"]),
 ]