Task #718: Numbered key-attendees table auto-synced with expected attendee count

- New shared component artifacts/tx-os/src/components/attendee-table-editor.tsx:
  AttendeeTableEditor (# | name | position | side select | remove), plus
  syncAttendeeRows/emptyAttendeeRow helpers and MAX_ATTENDEE_ROWS=50 cap.
- Internal booking dialog (protocol.tsx): replaced the two side-by-side
  BookingAttendeeColumn lists with the single numbered table; each row now
  carries its own side. Edit mode prefills existing keyAttendees then pads
  to attendeeCount. useEffect syncs row count with the attendeeCount field:
  growing adds empty rows, shrinking removes only empty trailing rows (never
  filled ones), min 1 row.
- Public form (protocol-request.tsx): same conversion (AttendeeColumn removed,
  Arabic labels passed directly since the page is forced-RTL Arabic).
- Submission payload unchanged: only rows with non-empty name sent, same
  keyAttendees {name, position, side} shape — no API/schema changes.
- i18n: added protocol.bookings.form.side ("الجهة"/"Side") in ar.json/en.json.
- Removed dead code (BookingAttendeeColumn, AttendeeColumn, AttendeeRow type,
  unused Plus/X imports in protocol-request).
- Verified: tsc --noEmit clean; page serves 200; architect review PASS.
- Follow-up proposed: #719 UI test for count sync/prefill/submit.

artifacts/tx-os/src/components/attendee-table-editor.tsx

@@ -0,0 +1,168 @@
+import { Plus, X } from "lucide-react";
+import { Input } from "@/components/ui/input";
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "@/components/ui/select";
+
+export type EditableAttendeeRow = {
+  name: string;
+  position: string;
+  side: "internal" | "external";
+};
+
+export const MAX_ATTENDEE_ROWS = 50;
+
+export function emptyAttendeeRow(): EditableAttendeeRow {
+  return { name: "", position: "", side: "internal" };
+}
+
+// Keep the number of editable rows in sync with the expected attendee count:
+// growing adds empty rows at the bottom; shrinking only removes empty rows
+// from the bottom (never a row the user already typed into). Always keeps at
+// least one row so the table is never empty.
+export function syncAttendeeRows(
+  rows: EditableAttendeeRow[],
+  count: number | null,
+): EditableAttendeeRow[] {
+  if (count == null || !Number.isFinite(count) || count < 1) return rows;
+  const target = Math.min(Math.floor(count), MAX_ATTENDEE_ROWS);
+  if (rows.length < target) {
+    return [
+      ...rows,
+      ...Array.from({ length: target - rows.length }, emptyAttendeeRow),
+    ];
+  }
+  if (rows.length > target) {
+    const next = [...rows];
+    while (
+      next.length > target &&
+      next.length > 1 &&
+      next[next.length - 1].name.trim() === "" &&
+      next[next.length - 1].position.trim() === ""
+    ) {
+      next.pop();
+    }
+    return next;
+  }
+  return rows;
+}
+
+export type AttendeeTableLabels = {
+  name: string;
+  position: string;
+  side: string;
+  sideInternal: string;
+  sideExternal: string;
+  addRow: string;
+  removeRow: string;
+};
+
+// Numbered "أبرز الحضور" table: # | name | position | side | remove.
+export function AttendeeTableEditor({
+  rows,
+  setRows,
+  labels,
+}: {
+  rows: EditableAttendeeRow[];
+  setRows: React.Dispatch<React.SetStateAction<EditableAttendeeRow[]>>;
+  labels: AttendeeTableLabels;
+}) {
+  const update = (
+    idx: number,
+    patch: Partial<EditableAttendeeRow>,
+  ) =>
+    setRows((rs) => rs.map((r, i) => (i === idx ? { ...r, ...patch } : r)));
+
+  return (
+    <div className="space-y-2">
+      <div className="overflow-x-auto rounded-lg border border-slate-200">
+        <table className="w-full text-sm">
+          <thead>
+            <tr className="border-b border-slate-200 bg-slate-50 text-start text-xs font-semibold text-slate-600">
+              <th className="w-10 px-2 py-2 text-center">#</th>
+              <th className="px-2 py-2 text-start">{labels.name}</th>
+              <th className="px-2 py-2 text-start">{labels.position}</th>
+              <th className="w-36 px-2 py-2 text-start">{labels.side}</th>
+              <th className="w-10 px-1 py-2" />
+            </tr>
+          </thead>
+          <tbody>
+            {rows.map((row, idx) => (
+              <tr key={idx} className="border-b border-slate-100 last:border-b-0">
+                <td className="px-2 py-1.5 text-center font-medium text-slate-500">
+                  {idx + 1}
+                </td>
+                <td className="px-2 py-1.5">
+                  <Input
+                    className="h-8"
+                    value={row.name}
+                    onChange={(e) => update(idx, { name: e.target.value })}
+                    placeholder={labels.name}
+                  />
+                </td>
+                <td className="px-2 py-1.5">
+                  <Input
+                    className="h-8"
+                    value={row.position}
+                    onChange={(e) => update(idx, { position: e.target.value })}
+                    placeholder={labels.position}
+                  />
+                </td>
+                <td className="px-2 py-1.5">
+                  <Select
+                    value={row.side}
+                    onValueChange={(v) =>
+                      update(idx, { side: v as "internal" | "external" })
+                    }
+                  >
+                    <SelectTrigger className="h-8">
+                      <SelectValue />
+                    </SelectTrigger>
+                    <SelectContent>
+                      <SelectItem value="internal">
+                        {labels.sideInternal}
+                      </SelectItem>
+                      <SelectItem value="external">
+                        {labels.sideExternal}
+                      </SelectItem>
+                    </SelectContent>
+                  </Select>
+                </td>
+                <td className="px-1 py-1.5 text-center">
+                  {rows.length > 1 && (
+                    <button
+                      type="button"
+                      onClick={() =>
+                        setRows((rs) => rs.filter((_, i) => i !== idx))
+                      }
+                      className="p-1 text-slate-400 hover:text-rose-500"
+                      aria-label={labels.removeRow}
+                    >
+                      <X className="h-4 w-4" />
+                    </button>
+                  )}
+                </td>
+              </tr>
+            ))}
+          </tbody>
+        </table>
+      </div>
+      <button
+        type="button"
+        onClick={() =>
+          setRows((rs) =>
+            rs.length >= MAX_ATTENDEE_ROWS ? rs : [...rs, emptyAttendeeRow()],
+          )
+        }
+        className="flex items-center gap-1 text-sm font-medium text-sky-600 hover:text-sky-700"
+      >
+        <Plus className="h-4 w-4" />
+        {labels.addRow}
+      </button>
+    </div>
+  );
+}

artifacts/tx-os/src/locales/ar.json

@@ -1857,6 +1857,7 @@
       "form": {
         "name": "الاسم",
         "position": "المنصب",
+        "side": "الجهة",
         "addRow": "إضافة صف",
         "removeRow": "حذف الصف"
       },

artifacts/tx-os/src/locales/en.json

@@ -1702,6 +1702,7 @@
       "form": {
         "name": "Name",
         "position": "Position",
+        "side": "Side",
         "addRow": "Add row",
         "removeRow": "Remove row"
       },

artifacts/tx-os/src/pages/protocol-request.tsx

@@ -4,8 +4,6 @@ import {
   CalendarClock,
   CheckCircle2,
   Loader2,
-  Plus,
-  X,
   AlertTriangle,
 } from "lucide-react";
 import { Button } from "@/components/ui/button";
@@ -20,6 +18,12 @@ import {
   SelectValue,
 } from "@/components/ui/select";
 import { DateTimePicker } from "@/components/date-time-picker";
+import {
+  AttendeeTableEditor,
+  emptyAttendeeRow,
+  syncAttendeeRows,
+  type EditableAttendeeRow,
+} from "@/components/attendee-table-editor";
 
 const API = `${import.meta.env.BASE_URL}api`;
 
@@ -70,8 +74,6 @@ function todayRiyadh(): string {
 }
 
 type MeetingType = "internal" | "external";
-type AttendeeSide = "internal" | "external";
-type AttendeeRow = { name: string; position: string };
 
 type FormState = {
   requesterName: string;
@@ -109,8 +111,6 @@ const EMPTY: FormState = {
   website: "",
 };
 
-const EMPTY_ROW: AttendeeRow = { name: "", position: "" };
-
 function localToIso(v: string): string {
   return new Date(v).toISOString();
 }
@@ -179,13 +179,11 @@ export default function ProtocolRequestPage() {
     slotProbe.data.slots.length > 0;
   const daySlots = availability.data?.slots ?? [];
   const selectedSlot = daySlots.find((s) => String(s.id) === form.slotId);
-  // Key attendees ("أبرز الحضور") are two separate lists: من الهيئة (internal)
+  // Key attendees ("أبرز الحضور"): one numbered table where each row carries
-  // and خارج الهيئة (external). Each row is a name + position.
+  // its own side (من الهيئة / خارج الهيئة). Row count follows the expected
-  const [internalAttendees, setInternalAttendees] = useState<AttendeeRow[]>([
+  // attendee count field.
-    { ...EMPTY_ROW },
+  const [attendees, setAttendees] = useState<EditableAttendeeRow[]>([
-  ]);
+    emptyAttendeeRow(),
-  const [externalAttendees, setExternalAttendees] = useState<AttendeeRow[]>([
-    { ...EMPTY_ROW },
   ]);
   const [submitting, setSubmitting] = useState(false);
   const [done, setDone] = useState(false);
@@ -195,32 +193,12 @@ export default function ProtocolRequestPage() {
   const set = <K extends keyof FormState>(k: K, v: FormState[K]) =>
     setForm((f) => ({ ...f, [k]: v }));
 
-  const updateRow = (
+  // Auto-generate table rows to match "العدد المتوقع للحضور".
-    side: AttendeeSide,
+  useEffect(() => {
-    idx: number,
+    const n =
-    field: keyof AttendeeRow,
+      form.attendeeCount.trim() === "" ? null : Number(form.attendeeCount);
-    value: string,
+    setAttendees((rs) => syncAttendeeRows(rs, n));
-  ) => {
+  }, [form.attendeeCount]);
-    const setter =
-      side === "internal" ? setInternalAttendees : setExternalAttendees;
-    setter((rows) =>
-      rows.map((r, i) => (i === idx ? { ...r, [field]: value } : r)),
-    );
-  };
-
-  const addRow = (side: AttendeeSide) => {
-    const setter =
-      side === "internal" ? setInternalAttendees : setExternalAttendees;
-    setter((rows) => [...rows, { ...EMPTY_ROW }]);
-  };
-
-  const removeRow = (side: AttendeeSide, idx: number) => {
-    const setter =
-      side === "internal" ? setInternalAttendees : setExternalAttendees;
-    setter((rows) =>
-      rows.length <= 1 ? [{ ...EMPTY_ROW }] : rows.filter((_, i) => i !== idx),
-    );
-  };
 
   const isExternal = form.meetingType === "external";
 
@@ -246,22 +224,13 @@ export default function ProtocolRequestPage() {
     if (!canSubmit || submitting) return;
     setSubmitting(true);
     try {
-      const keyAttendees = [
+      const keyAttendees = attendees
-        ...internalAttendees
         .filter((r) => r.name.trim() !== "")
         .map((r) => ({
           name: r.name.trim(),
           position: r.position.trim(),
-            side: "internal" as const,
+          side: r.side,
-          })),
+        }));
-        ...externalAttendees
-          .filter((r) => r.name.trim() !== "")
-          .map((r) => ({
-            name: r.name.trim(),
-            position: r.position.trim(),
-            side: "external" as const,
-          })),
-      ];
       const res = await fetch(`${API}/protocol/public/booking-requests`, {
         method: "POST",
         headers: { "Content-Type": "application/json" },
@@ -327,8 +296,7 @@ export default function ProtocolRequestPage() {
 
   const resetForm = () => {
     setForm(EMPTY);
-    setInternalAttendees([{ ...EMPTY_ROW }]);
+    setAttendees([emptyAttendeeRow()]);
-    setExternalAttendees([{ ...EMPTY_ROW }]);
     setReference(null);
     setDone(false);
   };
@@ -698,26 +666,19 @@ export default function ProtocolRequestPage() {
 
           <div className="space-y-3">
             <Label>أبرز الحضور</Label>
-            <div className="grid grid-cols-1 sm:grid-cols-2 gap-4">
+            <AttendeeTableEditor
-              <AttendeeColumn
+              rows={attendees}
-                title="من الهيئة"
+              setRows={setAttendees}
-                rows={internalAttendees}
+              labels={{
-                onChange={(idx, field, value) =>
+                name: "الاسم",
-                  updateRow("internal", idx, field, value)
+                position: "المنصب",
-                }
+                side: "الجهة",
-                onAdd={() => addRow("internal")}
+                sideInternal: "من الهيئة",
-                onRemove={(idx) => removeRow("internal", idx)}
+                sideExternal: "خارج الهيئة",
+                addRow: "إضافة صف",
+                removeRow: "حذف الصف",
+              }}
             />
-              <AttendeeColumn
-                title="خارج الهيئة"
-                rows={externalAttendees}
-                onChange={(idx, field, value) =>
-                  updateRow("external", idx, field, value)
-                }
-                onAdd={() => addRow("external")}
-                onRemove={(idx) => removeRow("external", idx)}
-              />
-            </div>
           </div>
 
           <div className="space-y-2">
@@ -757,59 +718,3 @@ export default function ProtocolRequestPage() {
     </div>
   );
 }
-
-function AttendeeColumn({
-  title,
-  rows,
-  onChange,
-  onAdd,
-  onRemove,
-}: {
-  title: string;
-  rows: AttendeeRow[];
-  onChange: (idx: number, field: keyof AttendeeRow, value: string) => void;
-  onAdd: () => void;
-  onRemove: (idx: number) => void;
-}) {
-  return (
-    <div className="rounded-lg border border-slate-200 p-3 space-y-3">
-      <p className="text-sm font-semibold text-slate-700">{title}</p>
-      <div className="space-y-3">
-        {rows.map((row, idx) => (
-          <div key={idx} className="space-y-2">
-            <div className="flex items-center gap-2">
-              <Input
-                value={row.name}
-                onChange={(e) => onChange(idx, "name", e.target.value)}
-                placeholder="الاسم"
-              />
-              {rows.length > 1 && (
-                <button
-                  type="button"
-                  onClick={() => onRemove(idx)}
-                  className="shrink-0 text-slate-400 hover:text-rose-500 p-1"
-                  aria-label="حذف الصف"
-                >
-                  <X className="w-4 h-4" />
-                </button>
-              )}
-            </div>
-            <Input
-              value={row.position}
-              onChange={(e) => onChange(idx, "position", e.target.value)}
-              placeholder="المنصب"
-            />
-          </div>
-        ))}
-      </div>
-      <button
-        type="button"
-        onClick={onAdd}
-        className="flex items-center gap-1 text-sm font-medium text-sky-600 hover:text-sky-700"
-      >
-        <Plus className="w-4 h-4" />
-        إضافة صف
-      </button>
-    </div>
-  );
-}

artifacts/tx-os/src/pages/protocol.tsx

@@ -86,6 +86,12 @@ import {
   TableRow,
 } from "@/components/ui/table";
 import { AppDock } from "@/components/app-dock";
+import {
+  AttendeeTableEditor,
+  emptyAttendeeRow,
+  syncAttendeeRows,
+  type EditableAttendeeRow,
+} from "@/components/attendee-table-editor";
 import { Calendar } from "@/components/ui/calendar";
 import { useNow } from "@/components/clock";
 import { useToast } from "@/hooks/use-toast";
@@ -3768,39 +3774,36 @@ function BookingDialog({
     edit?.attendeeCount != null ? String(edit.attendeeCount) : "",
   );
   const [purpose, setPurpose] = useState(edit?.purpose ?? "");
-  const emptyRow = { name: "", position: "" };
+  // One numbered table of key attendees; each row carries its own side
-  const initialRows = (side: "internal" | "external") => {
+  // (من الهيئة / خارج الهيئة). Existing rows first, then padded with empty
-    const rows = (edit?.keyAttendees ?? [])
+  // rows up to the expected attendee count.
-      .filter((a) => a.side === side)
+  const [attendees, setAttendees] = useState<EditableAttendeeRow[]>(() => {
-      .map((a) => ({ name: a.name, position: a.position }));
+    const existing = (edit?.keyAttendees ?? []).map((a) => ({
-    return rows.length > 0 ? rows : [{ ...emptyRow }];
+      name: a.name,
-  };
+      position: a.position,
-  const [internalAttendees, setInternalAttendees] = useState(() =>
+      side: a.side,
-    initialRows("internal"),
+    }));
-  );
+    const base = existing.length > 0 ? existing : [emptyAttendeeRow()];
-  const [externalAttendees, setExternalAttendees] = useState(() =>
+    return syncAttendeeRows(
-    initialRows("external"),
+      base,
+      edit?.attendeeCount != null ? edit.attendeeCount : null,
     );
+  });
+  useEffect(() => {
+    const n = attendeeCount.trim() === "" ? null : Number(attendeeCount);
+    setAttendees((rs) => syncAttendeeRows(rs, n));
+  }, [attendeeCount]);
   const isExternal = meetingType === "external";
 
   const mut = useMutation({
     mutationFn: () => {
-      const keyAttendees = [
+      const keyAttendees = attendees
-        ...internalAttendees
         .filter((r) => r.name.trim() !== "")
         .map((r) => ({
           name: r.name.trim(),
           position: r.position.trim(),
-            side: "internal" as const,
+          side: r.side,
-          })),
+        }));
-        ...externalAttendees
-          .filter((r) => r.name.trim() !== "")
-          .map((r) => ({
-            name: r.name.trim(),
-            position: r.position.trim(),
-            side: "external" as const,
-          })),
-      ];
       const body = {
         roomId: Number(roomId),
         title,
@@ -4005,18 +4008,19 @@ function BookingDialog({
       )}
       <div className="space-y-2">
         <Label>{t("protocol.bookings.keyAttendees")}</Label>
-        <div className="grid grid-cols-1 gap-3 sm:grid-cols-2">
+        <AttendeeTableEditor
-          <BookingAttendeeColumn
+          rows={attendees}
-            title={t("protocol.bookings.attendeeSides.internal")}
+          setRows={setAttendees}
-            rows={internalAttendees}
+          labels={{
-            setRows={setInternalAttendees}
+            name: t("protocol.bookings.form.name"),
+            position: t("protocol.bookings.form.position"),
+            side: t("protocol.bookings.form.side"),
+            sideInternal: t("protocol.bookings.attendeeSides.internal"),
+            sideExternal: t("protocol.bookings.attendeeSides.external"),
+            addRow: t("protocol.bookings.form.addRow"),
+            removeRow: t("protocol.bookings.form.removeRow"),
+          }}
         />
-          <BookingAttendeeColumn
-            title={t("protocol.bookings.attendeeSides.external")}
-            rows={externalAttendees}
-            setRows={setExternalAttendees}
-          />
-        </div>
       </div>
       <div>
         <Label>{t("protocol.notes")}</Label>
@@ -4026,75 +4030,6 @@ function BookingDialog({
   );
 }
 
-// One "أبرز الحضور" column (من الهيئة / خارج الهيئة) in the internal
-// booking dialog: rows of name + position with add/remove.
-function BookingAttendeeColumn({
-  title,
-  rows,
-  setRows,
-}: {
-  title: string;
-  rows: Array<{ name: string; position: string }>;
-  setRows: React.Dispatch<
-    React.SetStateAction<Array<{ name: string; position: string }>>
-  >;
-}) {
-  const { t } = useTranslation();
-  return (
-    <div className="space-y-2 rounded-lg border border-slate-200 p-3">
-      <p className="text-sm font-semibold text-slate-700">{title}</p>
-      {rows.map((row, idx) => (
-        <div key={idx} className="space-y-1.5">
-          <div className="flex items-center gap-1.5">
-            <Input
-              value={row.name}
-              onChange={(e) =>
-                setRows((rs) =>
-                  rs.map((r, i) =>
-                    i === idx ? { ...r, name: e.target.value } : r,
-                  ),
-                )
-              }
-              placeholder={t("protocol.bookings.form.name")}
-            />
-            {rows.length > 1 && (
-              <button
-                type="button"
-                onClick={() =>
-                  setRows((rs) => rs.filter((_, i) => i !== idx))
-                }
-                className="shrink-0 p-1 text-slate-400 hover:text-rose-500"
-                aria-label={t("protocol.bookings.form.removeRow")}
-              >
-                <X className="h-4 w-4" />
-              </button>
-            )}
-          </div>
-          <Input
-            value={row.position}
-            onChange={(e) =>
-              setRows((rs) =>
-                rs.map((r, i) =>
-                  i === idx ? { ...r, position: e.target.value } : r,
-                ),
-              )
-            }
-            placeholder={t("protocol.bookings.form.position")}
-          />
-        </div>
-      ))}
-      <button
-        type="button"
-        onClick={() => setRows((rs) => [...rs, { name: "", position: "" }])}
-        className="flex items-center gap-1 text-sm font-medium text-sky-600 hover:text-sky-700"
-      >
-        <Plus className="h-4 w-4" />
-        {t("protocol.bookings.form.addRow")}
-      </button>
-    </div>
-  );
-}
-
 function RoomDialog({
   edit,
   onClose,