Eighteen tests covering the user-observable matrix without yet splitting
the component (Phase 5 of the plan): title vs originalFilename fallback,
short-date rendering and absence, transcribe-button gating
(canWrite × isPdf × transcribeMode), edit-link gating, download-link
gating on filePath, kebab-menu visibility on (canWrite & isPdf) || filePath,
details drawer toggle, mobile menu open/close.
The 83 raw branches in the source map mostly to combinations of the
above flags — each test isolates one branch. Per Sara's guidance the
test names read as sentences and verify what the user sees, not internal
state.
Refs #496.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
