test: add Playwright e2e test suite for frontend and API

tests/e2e/pyproject.toml

@@ -0,0 +1,42 @@
+[project]
+name = "flvx-e2e-tests"
+version = "0.1.0"
+description = "E2E tests for FLVX Panel"
+requires-python = ">=3.11"
+dependencies = [
+    "pytest>=8.0.0",
+    "pytest-playwright>=0.5.0",
+    "playwright>=1.40.0",
+]
+
+[project.optional-dependencies]
+dev = [
+    "pytest-asyncio>=0.23.0",
+    "pytest-timeout>=2.3.0",
+    "pytest-html>=4.1.0",
+]
+
+[tool.pytest.ini_options]
+minversion = "8.0"
+pythonpath = ["."]
+testpaths = ["."]
+python_files = ["test_*.py"]
+python_classes = ["Test*"]
+python_functions = ["test_*"]
+markers = [
+    "e2e: End-to-end test requiring running servers",
+    "auth: Test requires authentication",
+    "slow: Slow running test",
+    "api: API-only test (no browser needed)",
+]
+addopts = "-v --tb=short"
+timeout = 60
+log_cli = true
+log_cli_level = "INFO"
+
+[tool.ruff]
+line-length = 120
+target-version = "py311"
+
+[tool.ruff.lint]
+select = ["E", "F", "I", "W"]