gsxdsm 06ec0e606e FN-7866: add auto-save toggle for the workspace file editor (default on) ...

Adds a shared, persisted auto-save preference for workspace text-file editing, defaulted to on, surfaced as a toolbar toggle in both the Files modal and right-dock Files view.

- Add useAutoSavePreference hook: persists the fn-file-editor-auto-save localStorage preference, broadcasts same-window changes via a custom event (storage events only reach other documents), and defaults to true.
- Extend useWorkspaceFileEditor with an autoSave flag that debounces (800ms) and triggers save() for a loaded, editable file with real pending changes, keyed by workspace+file+content to avoid re-firing on failed writes.
- Add an Auto-save toggle button to FileEditor's toolbar (autoSaveEnabled/onToggleAutoSave/canToggleAutoSave props), hidden for read-only/preview/binary files.
- Wire the shared preference into FileBrowserModal and DockFilesView, disabling auto-save for binary files in the modal.
- Add fileEditor.autoSave / fileEditor.toggleAutoSave i18n strings and document the new default behavior in docs/dashboard-guide.md.
- Add/extend tests covering the new hook, debounced auto-save behavior, and toolbar toggle wiring across FileEditor, FileBrowserModal, and DockFilesView.

Files changed:
 docs/dashboard-guide.md                            |   3 +
 .../dashboard/app/components/DockFilesView.tsx     |   6 +-
 .../dashboard/app/components/FileBrowserModal.tsx  |  20 ++--
 packages/dashboard/app/components/FileEditor.tsx   |  17 +++-
 .../components/__tests__/DockFilesView.test.tsx    |  37 ++++++-
 .../components/__tests__/FileBrowserModal.test.tsx |  86 +++++++++++++---
 .../app/components/__tests__/FileEditor.test.tsx   |  56 +++++++++++
 .../hooks/__tests__/useAutoSavePreference.test.ts  |  66 +++++++++++++
 .../hooks/__tests__/useWorkspaceFileEditor.test.ts | 108 +++++++++++++++++++++
 .../dashboard/app/hooks/useAutoSavePreference.ts   |  79 +++++++++++++++
 .../dashboard/app/hooks/useWorkspaceFileEditor.ts  |  47 ++++++++-
 packages/i18n/locales/en/app.json                  |   2 +
 12 files changed, 500 insertions(+), 27 deletions(-)

Fusion-Task-Id: FN-7866

Fusion-Task-Lineage: 0604de18-666d-4872-abce-2a3886c9ea55

Co-authored-by: Fusion (runfusion.ai) <noreply@runfusion.ai>

2026-07-12 12:49:37 -07:00

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