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976a5900f8 fix: clear stale upload failure banner when previewing files (#797)
* fix: clear stale upload failure banner when previewing existing files

Closes #786

- Clear uploadError in openFile() so navigating to a file dismisses the banner
- Scope banner visibility to the Design Files tab so stale errors do not bleed
  into preview surfaces
- Add test pinning that no banner is rendered when there is no upload error

* fix(workspace): move upload banner into DesignFilesPanel + interactive test

Per @mrcfps + @lefarcen review on PR #797:

- Move the upload-error banner from FileWorkspace into DesignFilesPanel
  body. Hide it whenever the in-panel preview is active (the missed
  flow that mrcfps and lefarcen flagged: single-click preview kept
  activeTab on DESIGN_FILES_TAB, so the old guard left the banner
  mounted above the preview).
- Keep a fallback banner in FileWorkspace that fires only when
  activeTab is not Design Files. This preserves the partial-upload
  visibility flagged by chatgpt-codex-connector: a partial upload
  opens the last successful file (flipping activeTab to a viewer)
  and the failure note still surfaces.
- Wrap uploadProjectFiles in try/catch so thrown errors surface a
  banner instead of disappearing.
- Replace the brittle viewer-empty assertion with two interactive
  vitest cases: (1) mock-fail upload, banner visible, preview file,
  banner hidden, close preview, banner back, dismiss, banner gone;
  (2) partial-upload uploaded+failed, banner appears on the viewer
  surface with the existing 'Uploaded N file(s), but M failed' text.
- Add df-upload-banner class and stable test ids upload-error-banner
  and upload-error-dismiss so future tests don't rely on the
  generic viewer-empty class.

Closes #786 staleness; addresses follow-up review.

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Co-authored-by: Matt Van Horn <455140+mvanhorn@users.noreply.github.com>
Co-authored-by: mrcfps <mrc@powerformer.com>
2026-05-10 23:56:24 +08:00
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