Implement reminders system with full CRUD and background processors

- Reminders service: create, update, delete, complete, snooze, dismiss
- List with filters (status, priority, assignee, entity, date range)
- My/overdue/upcoming convenience endpoints
- BullMQ processors: auto-follow-up creation (BR-060) and overdue notifications
- Snooze with presets (1h, 4h, tomorrow, next week) and custom datetime
- Un-snooze logic: snoozed reminders auto-revert to pending when snooze expires
- UI: filterable list with my/all toggle, priority badges, overdue indicators
- Permission-gated: view_own, view_all, create, assign_others
- Entity linking: reminders can link to clients, interests, or berths

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

src/app/api/v1/reminders/overdue/route.ts

@@ -0,0 +1,16 @@
+import { NextResponse } from 'next/server';
+
+import { withAuth, withPermission } from '@/lib/api/helpers';
+import { getOverdueReminders } from '@/lib/services/reminders.service';
+import { errorResponse } from '@/lib/errors';
+
+export const GET = withAuth(
+  withPermission('reminders', 'view_all', async (_req, ctx) => {
+    try {
+      const data = await getOverdueReminders(ctx.portId);
+      return NextResponse.json({ data });
+    } catch (error) {
+      return errorResponse(error);
+    }
+  }),
+);