Anso a25acbec7c feat(editor): opt-in diff preview before save (#855) ...

* feat(editor): add useComposeDiffPreviewEnabled hook

* feat(editor): add ComposeDiffPreviewDialog component

* fix(editor): replace HTML entity with Unicode arrow in ComposeDiffPreviewDialog

* feat(editor): add diff preview toggle to Appearance settings

Added a new 'Diff preview before save' toggle in the Display section of the Appearance settings panel. Users can now enable or disable the side-by-side diff view before compose and env file edits are saved to disk.

* feat(editor): wire diff preview dialog into compose save flow

* fix(editor): snapshot diff content at open time and fix event name

- Fix useComposeDiffPreviewEnabled and useDeployFeedbackEnabled to use
  the canonical SENCHO_SETTINGS_CHANGED constant from @/lib/events
  instead of the hardcoded string literal (wrong value)
- Snapshot language, original, modified, and fileName into diffPreview
  state at click time to prevent tab-switching from corrupting dialog
  content mid-review
- Remove React.MouseEvent from diffPreview state; pass a no-op stub to
  deployStack in the confirm path (preventDefault/stopPropagation are
  no-ops on an already-settled event anyway)
- Add diff-modal screenshot and document the feature in editor.mdx and
  settings.mdx

* docs(editor): add settings-toggle screenshot for diff preview feature

2026-04-30 22:01:17 -04:00

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