* fix(library): refresh book cover after editing metadata
Editing a book's cover in Book Details and saving showed the old cover
until a full reload, in two render paths:
- Library grid: handleUpdateMetadata mutated the book object in place,
so the memoized <BookCover> compared fields off the same (mutated)
reference and skipped re-rendering. Build a new book object via the
new getBookWithUpdatedMetadata helper instead of mutating.
- Book Details view: BookDetailView renders cover/title/author from the
modal's `book` prop, which the parent never re-passed after save.
BookDetailModal now tracks the saved book locally (displayBook) and
renders the view from it.
Adds a unit test for the immutable helper, a BookDetailModal regression
test (edit cover -> save -> view reflects it), and a sample-alice.txt
fixture for TXT import testing.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* chore(agent): add cover-refresh stale-render memory
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
Huang Xin
5a8f0873fa