Restructure Support dashboard into 2 KPI groups (Tickets + Contracts) with
section dividers, merge escalations and recommendations into "Attention needed".
Redesign Sales dashboard with clickable contract timeline and dialog.
Add CSS shimmer skeleton loading for all dashboard tabs and aside.
Unify vertical rhythm via * + * sibling combinator on tab content containers.
Remove ~265 lines of dead CSS (contract cards, escalation styles) and unused JS
functions. Refactor hydrateTicketCategoryFilter into generic hydrateSelectFilter.
Fix role="button" CSS bleed from shell and remove extra future year from timeline.
Co-Authored-By: Claude Opus 4.6 <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>