Desktop: Install CLI (#6526)

Co-authored-by: Brendan Allan <git@brendonovich.dev>

packages/desktop/src/cli.ts

@@ -0,0 +1,13 @@
+import { invoke } from "@tauri-apps/api/core"
+import { message } from "@tauri-apps/plugin-dialog"
+
+export async function installCli(): Promise<void> {
+  try {
+    const path = await invoke<string>("install_cli")
+    await message(`CLI installed to ${path}\n\nRestart your terminal to use the 'opencode' command.`, {
+      title: "CLI Installed",
+    })
+  } catch (e) {
+    await message(`Failed to install CLI: ${e}`, { title: "Installation Failed" })
+  }
+}