Feat: UI testing automation with playwright (#12749)

### What problem does this PR solve?

This PR helps automate the testing of the ui interface using pytest
Playwright

### Type of change

- [x] New Feature (non-breaking change which adds functionality)
- [x] Other (please describe): test automation infrastructure

---------

Co-authored-by: Liu An <asiro@qq.com>

test/playwright/helpers/env_utils.py

@@ -0,0 +1,18 @@
+import os
+
+
+def env_bool(name: str, default: bool = False) -> bool:
+    value = os.getenv(name)
+    if not value:
+        return default
+    return value.strip().lower() in {"1", "true", "yes", "on"}
+
+
+def env_int(name: str, default: int) -> int:
+    value = os.getenv(name)
+    if not value:
+        return default
+    try:
+        return int(value)
+    except ValueError:
+        return default