Wire Android SSO Custom Tabs, carousel-safe swipes, and core saveMedia.

Open SSO in Capacitor Browser with paarrot://android return; stop swipe-to-reply stealing carousel scrolls; bump cinny for shared save helpers and register MediaStore from the overlay.

android/app/src/main/AndroidManifest.xml

@@ -40,6 +40,14 @@
                 <data android:mimeType="*/*" />
             </intent-filter>
 
+            <!-- SSO / deep link return: paarrot://android/login/...?loginToken=... -->
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+                <data android:scheme="paarrot" />
+            </intent-filter>
+
         </activity>
 
         <provider