feat: forward GutenbergKit source-map Debug IDs to Sentry

Conform GutenbergKit's `GutenbergJSException.DebugImage` to the crash-logging
service's `JSDebugImage` protocol, so the editor's source-map Debug IDs reach the
Sentry event's `debug_meta`. This lets Sentry symbolicate GutenbergKit editor
exceptions by Debug ID, independent of the WebView's on-device file paths.

The existing `JSException` conformance picks up the debug images automatically
via the protocol's associated type; the legacy React Native path is unaffected
(it provides no debug images and uses the empty default).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: dcalhoun

WordPress/Classes/ViewRelated/NewGutenberg/NewGutenbergViewController.swift

@@ -662,4 +662,5 @@ private extension NewGutenbergViewController {
 
 // Extend Gutenberg JavaScript exception struct to conform the protocol defined in the Crash Logging service
 extension GutenbergJSException.StacktraceLine: @retroactive AutomatticTracks.JSStacktraceLine {}
+extension GutenbergJSException.DebugImage: @retroactive AutomatticTracks.JSDebugImage {}
 extension GutenbergJSException: @retroactive AutomatticTracks.JSException {}