feat: supervisor AI tools — agent performance, campaign stats, call summary, SLA breaches

- AiChatPanel accepts context type, team dashboard passes { type: 'supervisor' }
- Supervisor system prompt: data-driven, no bias, threshold-based comparisons

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/pages/team-dashboard.tsx

@@ -153,7 +153,7 @@ export const TeamDashboardPage = () => {
                 )}>
                     {aiOpen && (
                         <div className="flex h-full flex-col p-4">
-                            <AiChatPanel />
+                            <AiChatPanel callerContext={{ type: 'supervisor' }} />
                         </div>
                     )}
                 </div>