Render a small JPEG preview for each stored document and show it at the
card's leading edge, falling back to the kind icon when none exists.
- Generate previews in the background on upload (new document-thumbnail
pg-boss queue) plus a boot-time corpus backfill for existing documents;
upload never blocks on or fails because of it. Images are downscaled via
@napi-rs/canvas, a PDF's first page is rasterised then downscaled, every
other type is skipped. Generation never throws.
- Store the preview encrypted at rest in a 1:1 DocumentThumbnail side table
(migration 0236) so the list/detail queries that omit the original blob
never drag the preview either. Same AES-256-GCM string codec + fail-closed
decrypt as the content index; wired into the key-rotation walk.
- Serve it through an owner-scoped GET /api/documents/inbound/[id]/thumbnail
(auth + module gate + userId-scoped query + fail-closed decrypt), always
image/jpeg + nosniff + private, no-store; 404 on miss. The card renders an
authed lazy <img>, onError falls back to the icon.
- Add hasThumbnail to the document DTO so the card only fetches a preview
that exists.
Also drop the "search looks inside your documents" caption from the overview
(the index-all prompt stays) and the per-card searchable marker; both were
noise. Remove the now-unused i18n keys across all six locales.
Surface the content-search index's source (vision vs local extraction) on
the list + detail DTO so the vault UI can tell an AI-read document from a
locally-indexed one. Threads the source through both read paths and the
serialisers, regenerates the OpenAPI contract, and adds a narrowing helper
for the free-String column.
P2-1-T2/T3/T4/T5/T6.
- assist.ts + [id]/suggest: one provider call proposes a { title, kind,
documentDate } filing draft over the stored original or browser-OCR text.
Runs the full extract gauntlet (module → provider → consent → rate-limit →
budget) but writes nothing — never touches the fact rail or status.
- describe.ts + [id]/summary?mode=summary|text: session-only summary or raw
transcribed text. Descriptive only, no diagnosis; persists only the budget
ledger + audit.
- content-index.ts + [id]/index: normalise → tokenise (de-accent, stopword
drop, whole-word) → HMAC-SHA256 under an HKDF-derived subkey → store the
token array plus AES-256-GCM ciphertext of the text. Vision path transcribes
via the provider (consent + budget); text path indexes posted local-OCR text
(no egress). Gated on the existing AI consent — no new per-user toggle.
- crypto.deriveSubkey: HKDF-SHA256 purpose-bound subkey off the active key.
- list search now unions title/filename ILIKE with a GIN-accelerated
whole-word content-token match; DTO gains hasContentIndex.
- usage gains assistAvailable + contentIndex { enabled, indexedCount,
totalCount }; detail gains hasContentIndex.
Selection grows file-manager gestures — shift-click ranges (additive,
anchored on the last plain toggle) and press-and-hold on touch — and a
floating toolbar appears with the selected count and the bulk verbs:
change type, link condition, delete, clear. All verbs drive the bulk
endpoint in <=100-id chunks with merged per-id results; partial failures
surface as one counted toast, and a bulk delete gets one aggregate undo
that bulk-restores the succeeded rows (both sides no-op-safe by
contract). Escape clears the selection unless a dialog owns the key.
Refs: document-vault plan W3-T2
URL-backed facets (q / kind / episode / year) parse and serialise through
one pure helper pair so deep links round-trip byte-stable; the API search
builder pins the timeline sort. Month bucketing + row chunking feed the
virtualized grid as a flat item list. The upload-response parser owns the
duplicate contract: HTTP 200 with envelope-level meta.duplicate returns
the existing row, every 413/415 reason maps to a translated-copy class,
and proxy-stripped bodies fall back to the HTTP status. Query keys move
to the vault filter shape and gain the usage read.
Plan-Task: W2-T1 (URL state), W2-T5 (keys)
Marc-André Bombeck