Refactor POS components and implement new features:

- Replaced `POSOrderReference.vue` with `OrderAttachmentsActionButton.vue` and added new features like attachment preview, upload, and management.
- Introduced `POSOrderCustomerWishes.vue` for handling customer wishes fields with autosave behavior.
- Added Playwright global setup/teardown scripts for managing dev server lifecycle during tests.
- Enhanced booking flow test utilities and adjusted visibility rules in `bookingFlow.ts`.

playwright.global-teardown.mjs

@@ -0,0 +1,44 @@
+import fs from "node:fs/promises";
+import path from "node:path";
+import { execFile } from "node:child_process";
+import { promisify } from "node:util";
+
+const execFileAsync = promisify(execFile);
+const pidFile = path.resolve(process.cwd(), "output/playwright/dev-server.json");
+
+async function killProcessTree(pid) {
+  if (!pid) {
+    return;
+  }
+
+  if (process.platform === "win32") {
+    await execFileAsync("taskkill", ["/PID", String(pid), "/T", "/F"], { cwd: process.cwd() }).catch(() => {});
+    return;
+  }
+
+  try {
+    process.kill(-pid, "SIGTERM");
+  } catch {
+    try {
+      process.kill(pid, "SIGTERM");
+    } catch {
+      // ignore
+    }
+  }
+}
+
+export default async function globalTeardown() {
+  if (process.env.PLAYWRIGHT_BASE_URL) {
+    return;
+  }
+
+  try {
+    const file = await fs.readFile(pidFile, "utf8");
+    const { pid } = JSON.parse(file);
+    await killProcessTree(pid);
+  } catch {
+    // ignore missing or malformed state
+  }
+
+  await fs.rm(pidFile, { force: true }).catch(() => {});
+}