fix: sanitize daily report HTML for Telegram parse_mode

Strip div/br tags unsupported by Telegram API; reports still store UI HTML in details

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

backend/app/services/daily_report.py

@@ -198,7 +198,8 @@ def _build_report_body_rdp(host: Host, stats: dict[str, Any], when_local: dateti
 
 def _details_from_body(body: str, stats: dict[str, Any]) -> dict[str, Any]:
     escaped = html.escape(body)
-    report_html = '<div class="agent-report">' + escaped.replace("\n", "<br>\n") + "</div>"
+    # UI (Vue) допускает div; для единообразия — обёртка без br (Telegram читает через sanitize)
+    report_html = f'<div class="agent-report">{escaped.replace(chr(10), "<br>")}</div>'
     return {
         "stats": stats,
         "report_body": body,