fix(test): install playwright deps after host validation failure

test/scripts/ensure-playwright-chromium.test.ts

@@ -193,6 +193,56 @@ describe("ensurePlaywrightChromium", () => {
     );
   });
 
+  it("retries with Linux system dependencies when the Chromium install reports missing host deps", () => {
+    const logs: string[] = [];
+    const spawnSync = vi
+      .fn()
+      .mockReturnValueOnce({ status: 23 })
+      .mockReturnValueOnce({ status: 0 })
+      .mockReturnValueOnce({ status: 0 });
+    let existsCalls = 0;
+
+    expect(
+      ensurePlaywrightChromium({
+        cwd: "/repo",
+        env: { CI: "1", PATH: "/bin" },
+        executablePath: "/cache/chromium/chrome",
+        existsSync: () => ++existsCalls > 1,
+        getuid: () => 501,
+        log: (line: string) => logs.push(line),
+        platform: "linux",
+        spawnSync,
+        stdio: "pipe",
+        systemExecutablePath: "",
+      }),
+    ).toBe(0);
+    expect(spawnSync).toHaveBeenNthCalledWith(
+      1,
+      "pnpm",
+      ["--dir", "ui", "exec", "playwright", "install", "chromium"],
+      {
+        cwd: "/repo",
+        env: { CI: "1", PATH: "/bin" },
+        shell: false,
+        stdio: "pipe",
+        windowsVerbatimArguments: undefined,
+      },
+    );
+    expect(spawnSync).toHaveBeenNthCalledWith(
+      2,
+      "pnpm",
+      ["--dir", "ui", "exec", "playwright", "install", "--with-deps", "chromium"],
+      {
+        cwd: "/repo",
+        env: { CI: "1", PATH: "/bin" },
+        shell: false,
+        stdio: "pipe",
+        windowsVerbatimArguments: undefined,
+      },
+    );
+    expect(logs.join("\n")).toContain("installing Linux system dependencies");
+  });
+
   it("does not install Linux system dependencies for an unprivileged local lane", () => {
     const spawnSync = vi
       .fn()