fix(activities): show each note as its own dated message

The colon inside the clock was splitting the stamp from the comment, so date, author, text, and attachments now stay together.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/web/src/lib/activity-thread.ts

@@ -0,0 +1,71 @@
+import { jalaliToDate } from '@/lib/jalali';
+
+export type ActivityThreadEntry = {
+  at: Date | null;
+  dateLabel: string;
+  timeLabel: string;
+  author: string;
+  body: string;
+};
+
+const STAMP = /^\[(.+?) ساعت (\S+?)(?: — (.+))?\]$/;
+
+/** یادداشت فعالیت را به نظرهای جدا با مهر تاریخ/ساعت/نویسنده تبدیل می‌کند. */
+export function parseActivityThread(raw: string | null | undefined): ActivityThreadEntry[] | null {
+  const text = (raw ?? '').replace(/\r\n/g, '\n').trim();
+  if (!text) return null;
+
+  const entries: ActivityThreadEntry[] = [];
+  const preamble: string[] = [];
+  let current: ActivityThreadEntry | null = null;
+  let sawStamp = false;
+
+  for (const line of text.split('\n')) {
+    const match = line.trim().match(STAMP);
+    if (match) {
+      sawStamp = true;
+      if (current) entries.push(trimEntry(current));
+      current = {
+        at: stampToDate(match[1] ?? '', match[2] ?? ''),
+        dateLabel: (match[1] ?? '').trim(),
+        timeLabel: (match[2] ?? '').trim(),
+        author: (match[3] ?? '').trim(),
+        body: '',
+      };
+      continue;
+    }
+    if (current) current.body += `${current.body ? '\n' : ''}${line}`;
+    else preamble.push(line);
+  }
+  if (current) entries.push(trimEntry(current));
+  if (!sawStamp) return null;
+
+  const head = preamble.join('\n').trim();
+  if (head) {
+    entries.unshift({ at: null, dateLabel: '', timeLabel: '', author: '', body: head });
+  }
+  return entries;
+}
+
+function trimEntry(entry: ActivityThreadEntry): ActivityThreadEntry {
+  return { ...entry, body: entry.body.trim() };
+}
+
+function latinDigits(value: string): string {
+  const fa = '۰۱۲۳۴۵۶۷۸۹';
+  const ar = '٠١٢٣٤٥٦٧٨٩';
+  return value.replace(/[۰-۹٠-٩]/g, (ch) => {
+    const faIndex = fa.indexOf(ch);
+    return String(faIndex >= 0 ? faIndex : ar.indexOf(ch));
+  });
+}
+
+function stampToDate(dateLabel: string, timeLabel: string): Date | null {
+  const date = latinDigits(dateLabel).match(/(\d{4})\/(\d{1,2})\/(\d{1,2})/);
+  if (!date) return null;
+  const at = jalaliToDate(Number(date[1]), Number(date[2]), Number(date[3]));
+  if (Number.isNaN(at.getTime())) return null;
+  const time = latinDigits(timeLabel).match(/(\d{1,2}):(\d{2})/);
+  if (time) at.setHours(Number(time[1]), Number(time[2]), 0, 0);
+  return at;
+}