M6.5: enroll n8n (recipe #6, workflow automation) — tests authored (single-service, .n8n volume)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

tests/n8n/test_install.py

@@ -0,0 +1,29 @@
+"""n8n — install stage (recipe #6, workflow automation). D2 install + D3 Playwright."""
+import os
+import sys
+
+sys.path.insert(0, os.path.join(os.path.dirname(__file__), "..", "..", "runner"))
+from harness import lifecycle  # noqa: E402
+
+
+def test_healthz(deployed_app):
+    status = lifecycle.http_get(deployed_app, "/healthz")
+    assert status == 200, f"expected 200 from {deployed_app}/healthz, got {status}"
+
+
+def test_playwright_loads_editor(deployed_app):
+    """A real browser loads the live n8n editor SPA over HTTPS."""
+    from playwright.sync_api import sync_playwright
+
+    url = f"https://{deployed_app}/"
+    with sync_playwright() as p:
+        browser = p.chromium.launch(args=["--no-sandbox"])
+        try:
+            ctx = browser.new_context(ignore_https_errors=True)
+            page = ctx.new_page()
+            resp = page.goto(url, wait_until="domcontentloaded", timeout=60000)
+            assert resp is not None and resp.status in (200, 304), f"page status {resp and resp.status}"
+            body = page.content().lower()
+            assert "n8n" in body or "<html" in body, "no n8n content served"
+        finally:
+            browser.close()