first pass of merging in warp (doesn't build)

crates/warp_tui/tests/worker_dispatch.rs

@@ -0,0 +1,27 @@
+use command::blocking::Command;
+
+/// Verifies a worker invocation exits through worker dispatch without starting the TUI frontend.
+#[test]
+fn dispatches_worker_invocation_instead_of_tui_frontend() {
+    let empty_file =
+        std::env::temp_dir().join(format!("warp-tui-worker-dispatch-{}", std::process::id()));
+    std::fs::write(&empty_file, []).expect("failed to create empty worker-dispatch fixture");
+
+    let output = Command::new(env!("CARGO_BIN_EXE_warp-tui-oss"))
+        .arg("ripgrep-search")
+        .arg("__warp_tui_worker_dispatch_probe__")
+        .arg(&empty_file)
+        .output()
+        .expect("failed to invoke warp-tui worker");
+    let _ = std::fs::remove_file(empty_file);
+
+    assert!(
+        output.status.success(),
+        "worker invocation failed: {}",
+        String::from_utf8_lossy(&output.stderr)
+    );
+    assert!(
+        !String::from_utf8_lossy(&output.stdout).contains("Welcome to Warp TUI"),
+        "worker invocation started the TUI frontend"
+    );
+}