OpenTUI is here (#2685)

packages/opencode/src/cli/cmd/tui/event.ts

@@ -0,0 +1,39 @@
+import { Bus } from "@/bus"
+import z from "zod"
+
+export const TuiEvent = {
+  PromptAppend: Bus.event("tui.prompt.append", z.object({ text: z.string() })),
+  CommandExecute: Bus.event(
+    "tui.command.execute",
+    z.object({
+      command: z.union([
+        z.enum([
+          "session.list",
+          "session.new",
+          "session.share",
+          "session.interrupt",
+          "session.compact",
+          "session.page.up",
+          "session.page.down",
+          "session.half.page.up",
+          "session.half.page.down",
+          "session.first",
+          "session.last",
+          "prompt.clear",
+          "prompt.submit",
+          "agent.cycle",
+        ]),
+        z.string(),
+      ]),
+    }),
+  ),
+  ToastShow: Bus.event(
+    "tui.toast.show",
+    z.object({
+      title: z.string().optional(),
+      message: z.string(),
+      variant: z.enum(["info", "success", "warning", "error"]),
+      duration: z.number().default(5000).optional().describe("Duration in milliseconds"),
+    }),
+  ),
+}