feat: Multi-feature CRM update

- Add team_leader role with appropriate permissions
- Add lastSeen timestamp for chat online indicator
- Add needsFollowup flag to ucastnici table
- Add getTodayCalendarCount endpoint for calendar badge
- Add company reminders to calendar data
- Enhance company search to include phone and contacts
- Update routes to allow team_leader access to kurzy, services, timesheets

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/routes/timesheet.routes.js

@@ -1,7 +1,7 @@
 import express from 'express';
 import * as timesheetController from '../controllers/timesheet.controller.js';
 import { authenticate } from '../middlewares/auth/authMiddleware.js';
-import { requireAdmin } from '../middlewares/auth/roleMiddleware.js';
+import { requireTeamLeaderOrAdmin } from '../middlewares/auth/roleMiddleware.js';
 import { validateBody, validateParams } from '../middlewares/security/validateInput.js';
 import { z } from 'zod';
 import { createUpload } from '../config/upload.js';
@@ -48,7 +48,7 @@ router.get('/my', timesheetController.getMyTimesheets);
  * Get all timesheets (admin only)
  * GET /api/timesheets/all
  */
-router.get('/all', requireAdmin, timesheetController.getAllTimesheets);
+router.get('/all', requireTeamLeaderOrAdmin, timesheetController.getAllTimesheets);
 
 /**
  * Download timesheet