fix(documents): surface the read-by-AI provenance in the detail view

v1.28.38 removed the purple AI-read glyph from the vault card (it looked
wrong there), but that glyph had been the only visible surface for the
'read by AI' provenance since v1.28.22 — the detail sheet's AI section
shows no status and collapses entirely under auto-read. Add a discreet
muted 'Read by AI' line under the document's uploaded-metadata in the
detail view (data-slot document-detail-ai-read), independent of the AI
section's collapse logic; reinstate documents.ai.statusAiRead in all six
locales. Card glyph stays removed. The e2e that asserted the card marker
now deep-links the document and asserts the detail-view line.

CHANGELOG.md

@@ -5,7 +5,8 @@
 ## [1.28.38] — 2026-07-16 — Documents polish, waist reminders, bulk sharing
 
 The document vault gets a round of overdue polish. The list cards drop a
-stray glyph and give the real filename its own line so it stops being cut
+stray glyph — the "read by AI" mark it carried moves into the document's
+detail view — and give the real filename its own line so it stops being cut
 off; the detail view's close button is aligned correctly (a shared sheet
 primitive was reserving space for a button it wasn't showing). The action
 that opens a document in the coach now reads "Coach fragen".

e2e/documents-ai.spec.ts

@@ -357,26 +357,18 @@ test.describe("document vault — AI assist + content search", () => {
     page,
   }) => {
     // CONTENT_DOC_ID is seeded with source "vision" (an AI provider read it).
-    // No mocks: the real list GET threads the provenance through. v1.28.22 —
-    // the marker lives on the vault CARD's meta row (an inline glyph beside
-    // date · size), not in the sheet. Surface the card through search (the
-    // grid is virtualized, so a targeted card must be brought into view the
-    // way a user would).
-    await page.goto("/documents");
-    await expect(
-      page.getByRole("heading", { name: "Documents" }),
-    ).toBeVisible();
-    await page
-      .getByRole("searchbox", { name: "Search documents" })
-      .fill(CONTENT_BODY_WORD);
-    await expect(
-      page.getByRole("button", { name: "Open Radiology note" }),
-    ).toBeVisible({ timeout: 10_000 });
+    // No mocks: the real detail GET threads the provenance through. v1.28.38 —
+    // the vault card no longer carries the AI-read glyph (it looked wrong on
+    // the card face); the provenance now lives as a calm muted meta line in the
+    // document DETAIL view. Deep-link straight to the document so the sheet
+    // opens deterministically (the vault grid is virtualized).
+    await page.goto(`/documents?doc=${CONTENT_DOC_ID}`);
+    const sheet = page.getByRole("dialog");
+    await expect(sheet).toBeVisible();
 
-    const marker = page.locator(
-      `[data-document-id="${CONTENT_DOC_ID}"] [data-slot="document-card-ai-read"]`,
-    );
-    await expect(marker.first()).toBeVisible();
+    const marker = sheet.locator('[data-slot="document-detail-ai-read"]');
+    await expect(marker).toBeVisible();
+    await expect(marker).toHaveText("Read by AI");
   });
 
   // ── (f) Text-mode refuses a non-image before any OCR/upload ──────────────

messages/de.json

@@ -8355,6 +8355,7 @@
       "close": "Ausblenden"
     },
     "ai": {
+      "statusAiRead": "Von KI gelesen",
       "readDone": "Die KI hat dein Dokument gelesen.",
       "read": "Mit KI auslesen",
       "reread": "Erneut lesen",

messages/en.json

@@ -8355,6 +8355,7 @@
       "close": "Hide"
     },
     "ai": {
+      "statusAiRead": "Read by AI",
       "readDone": "The AI read your document.",
       "read": "Read with AI",
       "reread": "Read again",

messages/es.json

@@ -8355,6 +8355,7 @@
       "close": "Ocultar"
     },
     "ai": {
+      "statusAiRead": "Leído por IA",
       "readDone": "La IA leyó tu documento.",
       "read": "Leer con IA",
       "reread": "Leer de nuevo",

messages/fr.json

@@ -8355,6 +8355,7 @@
       "close": "Masquer"
     },
     "ai": {
+      "statusAiRead": "Lu par l’IA",
       "readDone": "L’IA a lu votre document.",
       "read": "Lire avec l’IA",
       "reread": "Relire",

messages/it.json

@@ -8355,6 +8355,7 @@
       "close": "Nascondi"
     },
     "ai": {
+      "statusAiRead": "Letto dall’IA",
       "readDone": "L’IA ha letto il tuo documento.",
       "read": "Leggi con l’IA",
       "reread": "Leggi di nuovo",

messages/pl.json

@@ -8355,6 +8355,7 @@
       "close": "Ukryj"
     },
     "ai": {
+      "statusAiRead": "Odczytane przez AI",
       "readDone": "AI odczytało Twój dokument.",
       "read": "Odczytaj z AI",
       "reread": "Odczytaj ponownie",

src/components/documents/document-detail-sheet.tsx

@@ -62,6 +62,7 @@ import { invalidateKeys, queryKeys } from "@/lib/query-keys";
 import { cn } from "@/lib/utils";
 import {
   INBOUND_DOCUMENT_KINDS,
+  isAiReadSource,
   type DocumentSuggestionDto,
   type DocumentSummaryMode,
   type InboundDocumentDetailDto,
@@ -420,6 +421,12 @@ export function DocumentDetailSheet({
   const title = doc?.title ?? doc?.filename ?? t("documents.card.untitled");
   const Icon = doc ? DOCUMENT_KIND_ICONS[doc.kind] : null;
   const originalHref = doc ? `/api/documents/inbound/${doc.id}/original` : "#";
+  // AI-read provenance — surfaced here (the detail view) as calm muted meta
+  // since v1.28.38 dropped the vault-card glyph. Same condition the AI section
+  // uses: a content index exists AND its source is a provider vision/text read.
+  const aiRead = doc
+    ? doc.hasContentIndex && isAiReadSource(doc.contentIndexSource)
+    : false;
 
   return (
     <>
@@ -752,6 +759,15 @@ export function DocumentDetailSheet({
                 })}
                 {doc.filename ? ` · ${doc.filename}` : ""}
               </p>
+
+              {aiRead ? (
+                <p
+                  data-slot="document-detail-ai-read"
+                  className="text-muted-foreground text-xs"
+                >
+                  {t("documents.ai.statusAiRead")}
+                </p>
+              ) : null}
             </div>
           </div>
         ) : null}