feat(android): align native preview with measured PWA design

scripts/test-integration.py

@@ -20,25 +20,41 @@ import urllib.request
 
 ROOT = Path(__file__).resolve().parents[1]
 REVISION = "10bfef7686ed7303b4c74c7fcc55a5eb16356c9d"
+SCREENSHOTS = ("native-dashboard.png",) + tuple(
+    f"{page}-{theme}.png" for page in ("login", "dashboard", "tasks", "notes", "shopping") for theme in ("light", "dark"))
+VISUAL_OUTPUTS = SCREENSHOTS + ("viewport.json",)
 
 
 def prepare_android_screenshots(app_output):
     additional = app_output / "connected_android_test_additional_output/integrationAndroidTest"
     screenshots = app_output / "native-screenshots"
     # Never accept a previous run's screenshot as current evidence.
-    for stale in additional.rglob("native-dashboard.png"):
-        stale.unlink()
-    (screenshots / "native-dashboard.png").unlink(missing_ok=True)
+    for name in VISUAL_OUTPUTS:
+        for stale in additional.rglob(name):
+            stale.unlink()
+        (screenshots / name).unlink(missing_ok=True)
     return additional, screenshots
 
 
-def collect_native_screenshot(additional, screenshots):
-    captures = list(additional.rglob("native-dashboard.png"))
-    assert len(captures) == 1, "Missing or ambiguous native fixture screenshot"
-    capture = captures[0].read_bytes()
-    assert capture.startswith(b"\x89PNG\r\n\x1a\n"), "Invalid native fixture screenshot"
+def collect_native_screenshot(additional, screenshots, gallery=False):
+    names = VISUAL_OUTPUTS if gallery else ("native-dashboard.png",)
+    validated = {}
+    parents = set()
+    for name in names:
+        captures = list(additional.rglob(name))
+        assert len(captures) == 1, f"Missing or ambiguous native fixture screenshot: {name}"
+        capture = captures[0].read_bytes()
+        if name.endswith(".png"):
+            assert capture.startswith(b"\x89PNG\r\n\x1a\n"), "Invalid native fixture screenshot"
+        else:
+            viewport = json.loads(capture)
+            assert viewport["widthPx"] > 0 and viewport["heightPx"] > 0 and viewport["density"] > 0
+        parents.add(captures[0].parent)
+        validated[name] = capture
+    assert len(parents) == 1, "Mixed-device native gallery evidence"
     screenshots.mkdir(parents=True, exist_ok=True)
-    (screenshots / "native-dashboard.png").write_bytes(capture)
+    for name, capture in validated.items():
+        (screenshots / name).write_bytes(capture)
 
 
 def run(upstream, android, cookie_without_secure=False):
@@ -152,8 +168,8 @@ def run(upstream, android, cookie_without_secure=False):
                             raise RuntimeError("Android integration tests failed. Inspect the Gradle test report.")
                         reports = app_output / "androidTest-results/connected/integration"
                         subprocess.run(["python3", str(ROOT / "scripts/verify-test-results.py"),
-                                        str(reports), "--minimum", "7"], check=True)
-                        collect_native_screenshot(additional, screenshots)
+                                         str(reports), "--minimum", "10"], check=True)
+                        collect_native_screenshot(additional, screenshots, gallery=True)
                     finally:
                         subprocess.run([str(adb), "reverse", "--remove", f"tcp:{port}"], check=False)
                         subprocess.run([str(adb), "reverse", "--remove", f"tcp:{ready['idpPort']}"], check=False)