feat(keyboard): harden clipboard command and add What's New sheet

Stabilize clipboard long-press prepare/resume across paste alerts and cold start, add an in-app release-notes sheet with remote bilingual HTML, localize typing input settings, and bump build to 55.

OSGKeyboardShared/Services/KeyboardOpenSurfacePolicy.swift

@@ -0,0 +1,22 @@
+// KeyboardOpenSurfacePolicy.swift
+// OSGKeyboard · Shared
+//
+// Pure open-surface decision used by the keyboard extension. Extracted so
+// paste-alert sticky resume can be unit-tested without UIKit.
+
+import Foundation
+
+public enum KeyboardOpenSurfacePolicy: Sendable {
+    /// Surface to show on the first frame of a keyboard presentation.
+    public static func resolve(
+        locksTypingSurface: Bool,
+        clipboardCommandActive: Bool,
+        stickyPreferVoice: Bool,
+        preferred: KeyboardState.Surface
+    ) -> KeyboardState.Surface {
+        if locksTypingSurface || clipboardCommandActive || stickyPreferVoice {
+            return .voice
+        }
+        return preferred
+    }
+}