Add missing row lvl permission check on Kanban view (#19002)

The Kanban view builds a query in two layers:
- Inner query — selects actual records from the table (has all the
permission context)
- Outer query — wraps the inner query's raw SQL string to do
grouping/pagination
The problem: the inner query's SQL is copied out as a plain string
before RLS predicates are added to it. RLS predicates are normally added
lazily when you execute the query, but here the execution happens on the
outer query — which doesn't know about the entity or its RLS rules.

So RLS predicates are never applied anywhere.

The fix: explicitly apply RLS predicates to the inner query before its
SQL is extracted.

Additonnaly, fixed a temporal issue in Datetime pickers.

packages/twenty-front/src/modules/object-record/object-filter-dropdown/components/ObjectFilterDropdownDateTimeInput.tsx

@@ -103,9 +103,13 @@ export const ObjectFilterDropdownDateTimeInput = () => {
 
   const internalZonedDateTime =
     !isRelativeDateFilter && isNonEmptyString(stringFilterValue)
-      ? Temporal.Instant.from(stringFilterValue).toZonedDateTimeISO(
-          timeZone ?? userTimezone,
-        )
+      ? stringFilterValue.includes('T')
+        ? Temporal.Instant.from(stringFilterValue).toZonedDateTimeISO(
+            timeZone ?? userTimezone,
+          )
+        : Temporal.PlainDate.from(stringFilterValue).toZonedDateTime(
+            timeZone ?? userTimezone,
+          )
       : null;
 
   return (

packages/twenty-front/src/modules/object-record/record-field/ui/form-types/components/FormDateTimeFieldInput.tsx

@@ -228,13 +228,21 @@ export const FormDateTimeFieldInput = ({
 
   const { userTimezone } = useUserTimezone();
 
-  const dateValue = isStandaloneVariableString(defaultValue)
-    ? null
-    : defaultValue === 'null' || defaultValue === '' || !isDefined(defaultValue)
+  const isVariable = Boolean(isStandaloneVariableString(defaultValue));
+
+  const dateValue =
+    isVariable ||
+    !isDefined(defaultValue) ||
+    defaultValue === 'null' ||
+    defaultValue === ''
       ? null
-      : Temporal.Instant.from(defaultValue).toZonedDateTimeISO(
-          timeZone ?? userTimezone,
-        );
+      : defaultValue.includes('T')
+        ? Temporal.Instant.from(defaultValue).toZonedDateTimeISO(
+            timeZone ?? userTimezone,
+          )
+        : Temporal.PlainDate.from(defaultValue).toZonedDateTime(
+            timeZone ?? userTimezone,
+          );
 
   return (
     <FormFieldInputContainer>