let AI comment everything because well... yeah...

lib/screens/sharedWidgets/datum.dart

@@ -1,8 +1,21 @@
+// * Shared widget for date selection across the application
+// * Features:
+// * - Date picker dialog interface
+// * - Formatted date display
+// * - Customizable button label
+// * - Date range validation
+// * - Callback for date changes
+
 import 'package:flutter/material.dart';
 
+/// Widget for managing date selection
+/// Provides a button to open date picker and displays selected date
 class Datum extends StatefulWidget {
+  /// Initial date value
   final DateTime? initDatum;
+  /// Callback function when date changes
   final Function(DateTime) onDateChanged;
+  /// Label for the date picker button
   final String name;
 
   const Datum(
@@ -12,7 +25,9 @@ class Datum extends StatefulWidget {
   State<Datum> createState() => _DatumState();
 }
 
+/// State class for the date selection widget
 class _DatumState extends State<Datum> {
+  /// Currently selected date
   DateTime? datum;
 
   @override
@@ -26,6 +41,7 @@ class _DatumState extends State<Datum> {
     return Row(
       children: [
         Row(children: [
+          // Date picker button
           SizedBox(
             width: 140,
             child: ElevatedButton(
@@ -40,6 +56,7 @@ class _DatumState extends State<Datum> {
           const SizedBox(
             width: 10,
           ),
+          // Formatted date display
           Text(
             '${datum?.day}. ${datum?.month}. ${datum?.year}',
           ),
@@ -48,6 +65,8 @@ class _DatumState extends State<Datum> {
     );
   }
 
+  /// Shows date picker dialog and returns selected date
+  /// @return Future<DateTime?> Selected date or null if cancelled
   Future<DateTime?> pickDate() async {
     final date = await showDatePicker(
         context: context,