feat: mid-session status updates — ticket notes, client updates, email drafts

Engineers can now generate AI-powered status updates during active FlowPilot
sessions and after resolve/escalate. Three audiences (Ticket Notes, Client
Update, Email Draft) with Quick/Detailed length options. Copy to clipboard
with one click. Client names auto-inserted from intake/PSA context.

Backend: new endpoint POST /ai-sessions/{id}/status-update with audience-aware
system prompts. Frontend: StatusUpdateModal with 2-step selection flow,
Share Update button in action bar, Share Resolution/Escalation on completed
sessions. Also updates Solutions Library spec with Community tier design.

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

frontend/src/hooks/useFlowPilotSession.ts

@@ -10,6 +10,8 @@ import type {
   ResolveSessionRequest,
   EscalateSessionRequest,
   SessionDocumentation,
+  StatusUpdateRequest,
+  StatusUpdateResponse,
 } from '@/types/ai-session'
 import { toast } from '@/lib/toast'
 
@@ -31,6 +33,7 @@ export interface UseFlowPilotSession {
   resumeOwnSession: () => Promise<void>
   abandonSession: () => Promise<void>
   rateSession: (rating: number, feedback?: string) => Promise<void>
+  generateStatusUpdate: (data: StatusUpdateRequest) => Promise<StatusUpdateResponse>
   loadSession: (sessionId: string) => Promise<void>
 
   // Derived
@@ -214,6 +217,17 @@ export function useFlowPilotSession(): UseFlowPilotSession {
     }
   }, [session])
 
+  const generateStatusUpdate = useCallback(async (data: StatusUpdateRequest): Promise<StatusUpdateResponse> => {
+    if (!session) throw new Error('No active session')
+    try {
+      return await aiSessionsApi.generateStatusUpdate(session.id, data)
+    } catch (e: unknown) {
+      const message = e instanceof Error ? e.message : 'Failed to generate status update'
+      toast.error(message)
+      throw e
+    }
+  }, [session])
+
   const loadSession = useCallback(async (sessionId: string) => {
     setIsLoading(true)
     setError(null)
@@ -260,6 +274,7 @@ export function useFlowPilotSession(): UseFlowPilotSession {
     resumeOwnSession,
     abandonSession,
     rateSession,
+    generateStatusUpdate,
     loadSession,
     isActive,
     canResolve,