Matt 65ff5961f2 feat(uat-batch): Group L — UploadForSigningDialog rework
L41 from the 2026-05-21 plan.

Shipped (4 sub-tasks):
  - **Dialog width**: already fixed in an earlier session
    (max-w-[1400px] w-[95vw] on the DialogContent).
  - **Draft persistence to localStorage**: scoped per
    interest+documentType (`pn-crm.upload-for-signing.draft.v1:<id>:<type>`),
    versioned for future shape evolution. Persists step / title /
    recipients / fields / invitationMessage with a 500ms debounce so
    rapid edits (typing the custom note, dragging a field) don't
    hammer storage. The PDF File object itself is NOT persisted
    (large blobs + browser quota); on reopen the rep re-picks the
    file but every other piece of state survives. Pristine "no
    progress yet" state actively clears any stale draft. Header
    surfaces a "Draft saved" indicator + Discard button when a
    draft exists. Successful submission clears the draft so the
    shadow doesn't outlive the doc.
  - **PDF preview error handling + zoom**: `onLoadError` now sets
    `pdfLoadError` and replaces the spinner with a useful failure
    block (error message + re-pick guidance) so reps don't see an
    infinite loading state on a broken file. Toolbar gains zoom
    controls (50–200% in 25% steps); field coordinates stay in %
    of page dimensions so placements scale automatically with the
    canvas.
  - **Field-placement keyboard shortcuts**: window-level keydown
    handler responds to Delete / Backspace (remove selected field),
    arrow keys (nudge 0.5% per press, Shift + arrow = 5% per press).
    Ignored when focus is in a real input / textarea / contenteditable
    so the shortcuts never steal typing.

Verified: tsc clean, vitest 1454/1454.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-21 23:16:00 +02:00
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