treat filter datetime inputs as local; convert to UTC on apply

src/lib/components/filters/content.svelte

@@ -14,6 +14,7 @@
     import type { Column } from '$lib/helpers/types';
     import type { Writable } from 'svelte/store';
     import { TagList } from '.';
+    import { toLocalDateTimeISO } from '$lib/helpers/date';
     import { Icon, Layout } from '@appwrite.io/pink-svelte';
     import { IconPlus } from '@appwrite.io/pink-icons-svelte';
 
@@ -79,7 +80,7 @@
         value = column?.array ? [] : null;
         if (column?.type === 'datetime') {
             const now = new Date();
-            value = now.toISOString().slice(0, 16);
+            value = toLocalDateTimeISO(now.toISOString()).slice(0, 16);
         }
         // Initialize spatial data with default values
         if (column?.type === 'point') {
@@ -108,7 +109,11 @@
         if (isDistanceOperator && distanceValue !== null && value !== null) {
             addFilter(columnsArray, columnId, operatorKey, value, arrayValues, distanceValue);
         } else {
-            addFilter(columnsArray, columnId, operatorKey, value, arrayValues);
+            const preparedValue =
+                column?.type === 'datetime' && typeof value === 'string' && value
+                    ? new Date(value).toISOString()
+                    : value;
+            addFilter(columnsArray, columnId, operatorKey, preparedValue, arrayValues);
         }
 
         columnId = null;

src/lib/components/filters/filtersModal.svelte

@@ -57,7 +57,11 @@
     }
 
     function addCondition() {
-        const newTag = generateTag(selectedColumn, operatorKey, value || arrayValues);
+        const preparedValue =
+            column?.type === 'datetime' && typeof value === 'string' && value
+                ? new Date(value).toISOString()
+                : value;
+        const newTag = generateTag(selectedColumn, operatorKey, preparedValue || arrayValues);
         if (localTags.some((t) => t.tag === newTag.tag && t.value === newTag.value)) {
             return;
         } else {
@@ -66,7 +70,7 @@
                 {
                     id: selectedColumn,
                     operator: operatorKey,
-                    value: value,
+                    value: preparedValue,
                     arrayValues: arrayValues
                 }
             ];