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/validators/crm.validators.js

@@ -15,6 +15,7 @@ export const createCompanySchema = z.object({
   phone: z.string().max(50).optional(),
   email: z.string().email('Neplatný formát emailu').max(255).optional().or(z.literal('')),
   website: z.string().url('Neplatný formát URL').max(255).optional().or(z.literal('')),
+  status: z.enum(['registered', 'lead', 'customer', 'inactive']).optional(),
 });
 
 export const updateCompanySchema = z.object({
@@ -26,7 +27,7 @@ export const updateCompanySchema = z.object({
   phone: z.string().max(50).optional(),
   email: z.string().email('Neplatný formát emailu').max(255).optional().or(z.literal('')),
   website: z.string().url('Neplatný formát URL').max(255).optional().or(z.literal('')),
-  isActive: z.boolean().optional(),
+  status: z.enum(['registered', 'lead', 'customer', 'inactive']).optional(),
 });
 
 // Project validators
@@ -176,7 +177,7 @@ export const updateTimeEntrySchema = z.object({
 export const createEventSchema = z.object({
   title: z.string().min(1, 'Názov je povinný'),
   description: z.string().optional(),
-  type: z.enum(['meeting', 'event']).default('meeting'),
+  type: z.enum(['meeting', 'event', 'important']).default('meeting'),
   start: z.string().min(1, 'Začiatok je povinný'),
   end: z.string().min(1, 'Koniec je povinný'),
   assignedUserIds: z.array(z.string().uuid('Neplatný formát user ID')).optional(),
@@ -185,7 +186,7 @@ export const createEventSchema = z.object({
 export const updateEventSchema = z.object({
   title: z.string().min(1).optional(),
   description: z.string().optional(),
-  type: z.enum(['meeting', 'event']).optional(),
+  type: z.enum(['meeting', 'event', 'important']).optional(),
   start: z.string().optional(),
   end: z.string().optional(),
   assignedUserIds: z.array(z.string().uuid('Neplatný formát user ID')).optional(),