feat: add mock data layer — 50 leads, 5 campaigns, ads, activities, templates, agents

Indian names, ₹ currency, healthcare campaign context for Helix Engage.
Includes factories.ts with nextId/randomFrom/daysAgo/createMockLead helpers,
50 leads across all statuses, 5 campaigns (3 active/1 paused/1 completed),
12 ads on active campaigns, 15 lead activities, 8 follow-ups, 5 WhatsApp
templates, and 3 agents. All cross-references are internally consistent.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/mocks/follow-ups.ts

@@ -0,0 +1,147 @@
+import type { FollowUp } from '@/types/entities';
+import { daysAgo } from './factories';
+
+// daysFromNow helper for future dates
+function daysFromNow(n: number): string {
+    const d = new Date();
+    d.setDate(d.getDate() + n);
+    // Set to business hours (10 AM IST)
+    d.setHours(10, 0, 0, 0);
+    return d.toISOString();
+}
+
+function today(hour: number = 14): string {
+    const d = new Date();
+    d.setHours(hour, 0, 0, 0);
+    return d.toISOString();
+}
+
+export const mockFollowUps: FollowUp[] = [
+    // 1 OVERDUE
+    {
+        id: 'followup-1',
+        createdAt: daysAgo(3),
+        followUpType: 'CALLBACK',
+        followUpStatus: 'OVERDUE',
+        scheduledAt: daysAgo(1),
+        completedAt: null,
+        priority: 'HIGH',
+        assignedAgent: 'Suresh P.',
+        patientId: 'lead-qualified-2',
+        callId: null,
+        patientName: 'Priya Sharma',
+        patientPhone: '+919845123456',
+        description: 'Patient requested callback after reviewing IVF package brochure. Had questions about donor egg options and financing.',
+    },
+
+    // 3 PENDING
+    {
+        id: 'followup-2',
+        createdAt: daysAgo(1),
+        followUpType: 'CALLBACK',
+        followUpStatus: 'PENDING',
+        scheduledAt: today(11),
+        completedAt: null,
+        priority: 'URGENT',
+        assignedAgent: 'Rekha S.',
+        patientId: 'lead-appt-1',
+        callId: null,
+        patientName: 'Ananya Nair',
+        patientPhone: '+918867234567',
+        description: 'Confirm appointment for IVF consultation tomorrow at 11 AM. Remind patient to bring previous fertility test reports.',
+    },
+    {
+        id: 'followup-3',
+        createdAt: daysAgo(2),
+        followUpType: 'APPOINTMENT_REMINDER',
+        followUpStatus: 'PENDING',
+        scheduledAt: today(15),
+        completedAt: null,
+        priority: 'HIGH',
+        assignedAgent: 'Meena K.',
+        patientId: 'lead-appt-3',
+        callId: null,
+        patientName: 'Sunita Reddy',
+        patientPhone: '+919901345678',
+        description: 'Send Women\'s Day Checkup appointment reminder via WhatsApp. Appointment is tomorrow at 9 AM.',
+    },
+    {
+        id: 'followup-4',
+        createdAt: daysAgo(1),
+        followUpType: 'MARKETING',
+        followUpStatus: 'PENDING',
+        scheduledAt: daysFromNow(1),
+        completedAt: null,
+        priority: 'NORMAL',
+        assignedAgent: 'Suresh P.',
+        patientId: 'lead-contacted-5',
+        callId: null,
+        patientName: 'Deepika Iyer',
+        patientPhone: '+917678456789',
+        description: 'Follow up on Cervical Screening campaign interest. Patient was busy during first call and asked to be called back next day.',
+    },
+
+    // 2 COMPLETED
+    {
+        id: 'followup-5',
+        createdAt: daysAgo(5),
+        followUpType: 'CALLBACK',
+        followUpStatus: 'COMPLETED',
+        scheduledAt: daysAgo(3),
+        completedAt: daysAgo(3),
+        priority: 'HIGH',
+        assignedAgent: 'Rekha S.',
+        patientId: 'lead-converted-1',
+        callId: null,
+        patientName: 'Lakshmi Patel',
+        patientPhone: '+919876543210',
+        description: 'Post-appointment follow-up call. Patient confirmed satisfaction with IVF consultation. Proceeding with treatment plan.',
+    },
+    {
+        id: 'followup-6',
+        createdAt: daysAgo(8),
+        followUpType: 'POST_VISIT',
+        followUpStatus: 'COMPLETED',
+        scheduledAt: daysAgo(6),
+        completedAt: daysAgo(6),
+        priority: 'NORMAL',
+        assignedAgent: 'Meena K.',
+        patientId: 'lead-converted-3',
+        callId: null,
+        patientName: 'Usha Mehta',
+        patientPhone: '+917890567890',
+        description: 'Post-visit satisfaction call for Senior Health Package. Patient very happy with service. Referred two friends.',
+    },
+
+    // 2 CANCELLED
+    {
+        id: 'followup-7',
+        createdAt: daysAgo(4),
+        followUpType: 'CALLBACK',
+        followUpStatus: 'CANCELLED',
+        scheduledAt: daysAgo(2),
+        completedAt: null,
+        priority: 'NORMAL',
+        assignedAgent: 'Suresh P.',
+        patientId: 'lead-contacted-7',
+        callId: null,
+        patientName: 'Ramesh Gupta',
+        patientPhone: '+918765234567',
+        description: 'Callback cancelled — patient informed via WhatsApp that they are travelling and will reach out when available.',
+    },
+    {
+        id: 'followup-8',
+        createdAt: daysAgo(6),
+        followUpType: 'MARKETING',
+        followUpStatus: 'CANCELLED',
+        scheduledAt: daysAgo(3),
+        completedAt: null,
+        priority: 'LOW',
+        assignedAgent: 'Rekha S.',
+        patientId: 'lead-contacted-9',
+        callId: null,
+        patientName: 'Mohan Verma',
+        patientPhone: '+919123456789',
+        description: 'Diabetes Awareness Camp follow-up cancelled — patient opted out of marketing communications.',
+    },
+];