feat: Add user management APIs, status enum, enhanced notifications

- Add updateUser and resetUserPassword admin endpoints
- Change company status from boolean to enum (registered, lead, customer, inactive)
- Add 'important' event type to calendar validators and email templates
- Add 1-hour-before event notifications cron job
- Add 18:00 evening notifications for next-day events
- Add contact description field support
- Fix count() function usage in admin service
- Add SQL migrations for schema changes

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

src/routes/admin.routes.js

@@ -31,6 +31,17 @@ router.get(
   adminController.getUser
 );
 
+// Update user details
+router.patch(
+  '/users/:userId',
+  validateParams(z.object({ userId: z.string().uuid() })),
+  validateBody(z.object({
+    firstName: z.string().max(100).optional(),
+    lastName: z.string().max(100).optional(),
+  })),
+  adminController.updateUser
+);
+
 // Zmena role usera
 router.patch(
   '/users/:userId/role',
@@ -39,6 +50,13 @@ router.patch(
   adminController.changeUserRole
 );
 
+// Reset user password
+router.post(
+  '/users/:userId/reset-password',
+  validateParams(z.object({ userId: z.string().uuid() })),
+  adminController.resetUserPassword
+);
+
 // Zmazanie usera
 router.delete(
   '/users/:userId',