feat(keyboard): harden polish/clipboard guards and ship 1.6.6 (build 59)

Keep marketing version at 1.6.6 and bump build to 59. Strengthen never-answer
polish safeguards, clipboard reply-intent continuity, voice undo UX, device
UITests harness, eval fixtures, and What's New assets.

OSGKeyboard/AppIcon.icon/icon.json

@@ -8,6 +8,18 @@
       "hidden" : false,
       "layers" : [
         {
+          "image-name" : "OSGKeyboard Icon2.png",
+          "name" : "OSGKeyboard Icon2",
+          "position" : {
+            "scale" : 0.505,
+            "translation-in-points" : [
+              8,
+              6
+            ]
+          }
+        },
+        {
+          "hidden" : true,
           "image-name" : "Group 29 3.png",
           "name" : "Group 29 3",
           "position" : {

OSGKeyboard/Views/Components/RemoteWebView.swift

@@ -25,7 +25,7 @@ struct RemoteWebView: UIViewRepresentable {
         Self.applyScrollInsets(webView)
         webView.navigationDelegate = context.coordinator
         context.coordinator.loadedURL = url
-        webView.load(URLRequest(url: url))
+        webView.load(Self.request(for: url))
         return webView
     }
 
@@ -34,7 +34,14 @@ struct RemoteWebView: UIViewRepresentable {
         Self.applyScrollInsets(uiView)
         guard context.coordinator.loadedURL != url else { return }
         context.coordinator.loadedURL = url
-        uiView.load(URLRequest(url: url))
+        uiView.load(Self.request(for: url))
+    }
+
+    /// The pages we host send no `Cache-Control`, so the default policy lets
+    /// WebKit serve a heuristically-fresh copy without contacting the server —
+    /// edited release notes could stay stale for hours. Always revalidate.
+    static func request(for url: URL) -> URLRequest {
+        URLRequest(url: url, cachePolicy: .reloadRevalidatingCacheData)
     }
 
     /// Kill automatic safe-area insets that leave a dead band under the page.