Ticket log entries without Created_By (e.g. system-generated) now show
'System' instead of 'Unbekannter Benutzer'. Missing timestamps show
a dash instead of 'Unbekannte Zeit'.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Add support/sales/controlling dashboards with KPIs, trend charts and
risk indicators. Add debitor communication timeline, contact filters,
system recommendations engine, and configurable controlling risk rules.
Rename search→index to fix query-string preservation on back navigation.
Remove fake escalation rate metric, add KPI info tooltips, and switch
trend chart colors to red (created) / green (closed) for clarity.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
