feat: support runtime props in Dynamic Widgets

[V3RON]

What is this?

This PR adds runtime-props update support for entry-based Dynamic Widgets on Android and iOS. It closes the gap where the Dynamic Widget adapter accepted props but the native render runtimes always supplied {}. The existing legacy widget APIs and data formats remain unchanged.

How does it work?

• Android exposes updateAndroidDynamicWidget with typed, JSON-serializable props, stores the latest props per Dynamic Widget ID in private SharedPreferences, passes them into the Hermes render path, and refreshes only matching generated Glance receiver instances.
• iOS exposes updateDynamicWidget with typed, JSON-serializable props, stores the latest props per Dynamic Widget ID in App Group UserDefaults, passes them into the JavaScriptCore/WidgetKit render path, and reloads only the matching WidgetKit kind.
• Both platforms default to {} when no props are stored. The existing Metro adapters already forward props, so no production CLI generator change is required.
• The examples, documentation, and platform-specific JVM, Swift, and JavaScript regression tests cover the new behavior.

Why is this useful?

Applications can update Dynamic Widgets with current runtime data such as headline and unreadCount, without constructing pre-rendered payload variants. Platform-specific persistence and targeted refreshes keep updates scoped to the intended widget while preserving existing integrations.

Closes #221