from pathlib import Path
p=Path('/opt/struktur/social-media-agent/templates/cockpit.html')
s=p.read_text()
old='Radar {% if signals %}<span style="font-size:10px;color:var(--muted);">({{signals|length}})</span>{% endif %}'
new='Radar {% if signals %}<span style="font-size:10px;color:var(--muted);">({{signals|length}} Rohsignale)</span>{% endif %}'
if old not in s: raise SystemExit('count anchor missing')
p.write_text(s.replace(old,new,1))