fix: hydrate meeting note file uploader

internal/httpapi/payload.go

@@ -335,7 +335,7 @@ func meetingNoteFilePayload(file store.MeetingNoteFile, viewer int64) map[string
 		"preview_mode":     file.PreviewMode,
 		"preview_file_id":  file.PreviewFileID,
 		"uploader_user_id": formatUserID(file.UploaderID),
-		"uploader":         userSummary(file.UploaderID, store.UserSummary{}),
+		"uploader":         userSummary(file.UploaderID, file.Uploader),
 		"version":          file.Version,
 		"permissions": map[string]any{
 			"can_preview":  file.Status == "active",

internal/httpapi/payload_userid_test.go

@@ -115,6 +115,28 @@ func TestMeetingNoteFilePayloadKeepsOriginalNameAndExtension(t *testing.T) {
 	}
 }
 
+func TestMeetingNoteFilePayloadUsesUploaderSummary(t *testing.T) {
+	now := time.Date(2026, 9, 17, 12, 0, 0, 0, time.UTC)
+	payload := meetingNoteFilePayload(store.MeetingNoteFile{
+		NoteFileID: "mnote_1",
+		UploaderID: 1573637795346386944,
+		Uploader: store.UserSummary{
+			UserID:      1573637795346386944,
+			DisplayName: "jcharles3",
+		},
+		Status:    "active",
+		CreatedAt: now,
+		UpdatedAt: now,
+	}, 1573637795346386944)
+	uploader, ok := payload["uploader"].(map[string]any)
+	if !ok {
+		t.Fatalf("uploader=%#v", payload["uploader"])
+	}
+	if uploader["display_name"] != "jcharles3" {
+		t.Fatalf("uploader.display_name=%v, want jcharles3", uploader["display_name"])
+	}
+}
+
 func assertNoNumericUserIDs(t *testing.T, value any) {
 	t.Helper()
 	switch typed := value.(type) {

internal/store/mysql.go

@@ -622,6 +622,9 @@ func (s *Store) MeetingNoteFiles(ctx context.Context, userID int64, meetingID st
 		FROM im_meeting_note_files WHERE meeting_id=? AND status='active' ORDER BY id DESC`, meetingID); err != nil {
 		return nil, err
 	}
+	if err := s.hydrateMeetingNoteFilesUploaders(ctx, files); err != nil {
+		return nil, err
+	}
 	return files, nil
 }
 
@@ -1327,9 +1330,42 @@ func (s *Store) meetingNoteFile(ctx context.Context, meetingID, noteFileID strin
 		}
 		return nil, err
 	}
+	if err := s.hydrateMeetingNoteFileUploader(ctx, &file); err != nil {
+		return nil, err
+	}
 	return &file, nil
 }
 
+func (s *Store) hydrateMeetingNoteFileUploader(ctx context.Context, file *MeetingNoteFile) error {
+	if file == nil {
+		return nil
+	}
+	summaries, err := s.UserSummaries(ctx, []int64{file.UploaderID})
+	if err != nil {
+		return err
+	}
+	file.Uploader = summaryOrDefault(file.UploaderID, summaries)
+	return nil
+}
+
+func (s *Store) hydrateMeetingNoteFilesUploaders(ctx context.Context, files []MeetingNoteFile) error {
+	if len(files) == 0 {
+		return nil
+	}
+	userIDs := make([]int64, 0, len(files))
+	for _, file := range files {
+		userIDs = append(userIDs, file.UploaderID)
+	}
+	summaries, err := s.UserSummaries(ctx, userIDs)
+	if err != nil {
+		return err
+	}
+	for i := range files {
+		files[i].Uploader = summaryOrDefault(files[i].UploaderID, summaries)
+	}
+	return nil
+}
+
 func meetingVisible(meeting Meeting, userID int64) bool {
 	if meeting.OrganizerID == userID || meeting.RecorderID == userID {
 		return true

internal/store/types.go

@@ -152,6 +152,7 @@ type MeetingNoteFile struct {
 	MeetingID     string `db:"meeting_id"`
 	FileID        string `db:"file_id"`
 	UploaderID    int64  `db:"uploader_id"`
+	Uploader      UserSummary
 	FileName      string    `db:"file_name"`
 	MIMEType      string    `db:"mime_type"`
 	FileSize      int64     `db:"file_size"`