fix(datepicker): improve focus handling and scroll position restoration in modal

app/src/plugins/tm@modal/_mixins/vuetify-fix-focus.ts

@@ -3,6 +3,7 @@ export default {
   data() {
     return {
       preventInputFocus: false,
+      savedScrollPosition: null,
     };
   },
 
@@ -20,18 +21,44 @@ export default {
     },
 
     onDateOpen($event) {
-      if ($event == undefined) {
+      // $event should be the element reference (or any truthy value to trigger saving)
+      if ($event) {
+        // Find the scrollable modal container
+        const modalContent = document.querySelector('.v-dialog .modal-content');
+        if (modalContent) {
+          this.savedScrollPosition = modalContent.scrollTop;
+        }
+
         this.preventInputFocus = true;
+
+        // Reset after datepicker is opened
+        setTimeout(() => {
+          this.preventInputFocus = false;
+          this.savedScrollPosition = null;
+        }, 500);
       }
     },
 
     onInputFocus($event) {
-      setTimeout(() => {
-        if (this.preventInputFocus) {
-          $event.target.blur();
-          this.preventInputFocus = false;
+      // If we have a saved scroll position and an unwanted focus happened
+      if (this.preventInputFocus && this.savedScrollPosition !== null) {
+        const target = $event.target;
+
+        // Only intercept text input focus (autocomplete fields)
+        if (target.tagName === 'INPUT' && target.type === 'text') {
+          // Blur the focused element
+          setTimeout(() => {
+            target.blur();
+
+            const modalContent = document.querySelector(
+              '.v-dialog .modal-content',
+            );
+            if (modalContent && this.savedScrollPosition !== null) {
+              modalContent.scrollTop = this.savedScrollPosition;
+            }
+          }, 0);
         }
-      }, 100);
+      }
     },
   },
 };