Add dueDate to reminders, remove reminder from notes

Schema changes:
- Added dueDate field to companyReminders table
- Removed reminderDate and reminderSent from notes table

Backend changes:
- Updated company-reminder.service with dueDate handling
- Added getUpcomingReminders function for dashboard
- Simplified note.service (removed reminder logic)
- Updated validators and routes

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

src/services/company-reminder.service.js

@@ -1,11 +1,11 @@
 import { db } from '../config/database.js';
 import { companies, companyReminders } from '../db/schema.js';
-import { eq, desc, sql } from 'drizzle-orm';
+import { eq, desc, sql, and, lte, gte, isNull, or } from 'drizzle-orm';
 import { NotFoundError, BadRequestError } from '../utils/errors.js';
 
 const ensureCompanyExists = async (companyId) => {
   const [company] = await db
-    .select({ id: companies.id })
+    .select({ id: companies.id, name: companies.name })
     .from(companies)
     .where(eq(companies.id, companyId))
     .limit(1);
@@ -13,6 +13,8 @@ const ensureCompanyExists = async (companyId) => {
   if (!company) {
     throw new NotFoundError('Firma nenájdená');
   }
+
+  return company;
 };
 
 const getReminderById = async (reminderId) => {
@@ -36,7 +38,7 @@ export const getRemindersByCompanyId = async (companyId) => {
     .select()
     .from(companyReminders)
     .where(eq(companyReminders.companyId, companyId))
-    .orderBy(desc(companyReminders.createdAt));
+    .orderBy(companyReminders.dueDate, desc(companyReminders.createdAt));
 
   return reminders;
 };
@@ -54,6 +56,7 @@ export const createReminder = async (companyId, data) => {
     .values({
       companyId,
       description,
+      dueDate: data.dueDate ? new Date(data.dueDate) : null,
       isChecked: data.isChecked ?? false,
     })
     .returning();
@@ -80,6 +83,7 @@ export const updateReminder = async (companyId, reminderId, data) => {
     .update(companyReminders)
     .set({
       description: trimmedDescription,
+      dueDate: data.dueDate !== undefined ? (data.dueDate ? new Date(data.dueDate) : null) : reminder.dueDate,
       isChecked: data.isChecked !== undefined ? data.isChecked : reminder.isChecked,
       updatedAt: new Date(),
     })
@@ -131,3 +135,37 @@ export const getReminderCountsByCompany = async () => {
 
   return rows;
 };
+
+/**
+ * Get upcoming reminders for dashboard
+ * Returns reminders due within the next 5 days that are not checked
+ * Includes company name for display
+ */
+export const getUpcomingReminders = async () => {
+  const now = new Date();
+  const fiveDaysFromNow = new Date();
+  fiveDaysFromNow.setDate(fiveDaysFromNow.getDate() + 5);
+
+  const reminders = await db
+    .select({
+      id: companyReminders.id,
+      description: companyReminders.description,
+      dueDate: companyReminders.dueDate,
+      isChecked: companyReminders.isChecked,
+      companyId: companyReminders.companyId,
+      companyName: companies.name,
+      createdAt: companyReminders.createdAt,
+    })
+    .from(companyReminders)
+    .leftJoin(companies, eq(companyReminders.companyId, companies.id))
+    .where(
+      and(
+        eq(companyReminders.isChecked, false),
+        lte(companyReminders.dueDate, fiveDaysFromNow),
+        gte(companyReminders.dueDate, now)
+      )
+    )
+    .orderBy(companyReminders.dueDate);
+
+  return reminders;
+};