feat(datepicker): introduce ZDatepicker component for enhanced date selection functionality

app/src/plugins/tm@modal/master-task/z-master-task-modal.vue

@@ -57,24 +57,22 @@
 
           <div class="splitted-inputs">
             <!-- TODO: Bialko validacie -->
-            <div
-              @click="handleDatepickerClick"
-              class="datepicker-wrapper left"
-              ref="datepicker-wrapper"
-            >
-              <Datepicker
+            <div class="datepicker-wrapper left" ref="datepicker-wrapper">
+              <Z-datepicker
                 v-model="mastertask.deadline"
                 ref="datepicker"
+                label="Dátum"
                 :auto-apply="true"
                 :min-date="new Date()"
-                class="modal-input datepicker-input"
+                class="modal-input"
                 format="dd.MM.yyyy"
                 locale="sk"
                 select-text="Vybrať"
                 cancel-text="Zrušiť"
-                placeholder="Dátum"
+                placeholder="Deadline"
                 :class="{ error: v$.mastertask.deadline.$errors?.length }"
                 :validations="v$.mastertask.deadline"
+                @open="onDateOpen"
               />
             </div>
 
@@ -118,7 +116,7 @@
             class="modal-input"
             variant="solo"
             type="number"
-            :label="`${mastertask.duration} h`"
+            label="Naplánované hodiny"
             :disabled="true"
           ></v-text-field>
 
@@ -312,7 +310,7 @@
 </template>
 
 <script>
-import Datepicker from '@vuepic/vue-datepicker';
+import ZDatepicker from '@/plugins/tm@_components/z-datepicker.vue';
 import ZFilesUpload from '@/plugins/tm@_components/z-files-upload.vue';
 import useVuelidate from '@vuelidate/core';
 import { required, minLength } from '@vuelidate/validators';
@@ -344,7 +342,7 @@ export default {
   components: {
     AMastertaskDescription,
     ATasksTable,
-    Datepicker,
+    ZDatepicker,
     ZFilesUpload,
     // ZAutocomplete,
     QuillEditor,
@@ -461,11 +459,29 @@ export default {
 
   methods: {
     handleDatepickerClick() {
-      // Pass the datepicker wrapper element reference to the mixin
-      const scrollTarget = this.$refs['datepicker-wrapper'];
-      this.onDateOpen(scrollTarget);
-      // Open the datepicker
-      this.$refs['datepicker'].openMenu();
+      // Open the datepicker - it now opens automatically via click on wrapper
+    },
+
+    onDateOpen($event) {
+      // $event should be the element reference (or any truthy value to trigger saving)
+      if ($event) {
+        // Find the scrollable modal container
+        const modalContent = document.querySelector('.v-dialog .modal-content');
+        if (modalContent) {
+          this.savedScrollPosition = modalContent.scrollTop;
+        }
+
+        this.preventInputFocus = true;
+
+        // Reattach focus event listeners
+        this.setFocusEvent();
+
+        // Reset after datepicker is opened
+        setTimeout(() => {
+          this.preventInputFocus = false;
+          this.savedScrollPosition = null;
+        }, 500);
+      }
     },
 
     closeBothModals() {
@@ -527,11 +543,26 @@ export default {
     async showModal({ mastertask, editMode = false }) {
       this.isSaving = false;
       this.editMode = null;
+
+      // CRITICAL: Prevent v-dialog autofocus BEFORE modal opens
+      this.preventInputFocus = true;
+      console.log(
+        '🟠 [z-master-task-modal] showModal - preventInputFocus set to true BEFORE modal opens',
+      );
+
       this.visible = true;
       this.mastertask = null;
       this.$nextTick(() => {
         this.setFocusEvent();
         this.v$.$reset();
+
+        // Reset after modal is fully rendered and v-dialog autofocus has been blocked
+        setTimeout(() => {
+          this.preventInputFocus = false;
+          console.log(
+            '🟠 [z-master-task-modal] showModal - preventInputFocus reset to false after 300ms',
+          );
+        }, 300);
       });
 
       try {
@@ -787,8 +818,4 @@ export default {
 
 .datepicker-wrapper
 	width: 100%
-	.datepicker-input
-		width: 100% !important
-		height: 100%
-		pointer-events: none
 </style>