Show last_value_still_valid_on value in edit

packages/editor/src/lib/components/parameters/ScaleEdit.svelte

@@ -52,7 +52,11 @@
 
   let { data } = $derived($page)
 
-  let { unitByName, units } = $derived(data)
+  let { languageCode, unitByName, units } = $derived(data)
+
+  let dateFormatter = $derived(
+    new Intl.DateTimeFormat(languageCode, { dateStyle: "short" }),
+  )
 
   function addInstantReferencesAndScale() {
     const newScaleAtInstant =
@@ -273,6 +277,14 @@
       <input bind:checked={reviewed} class="checked rounded" type="checkbox" />
       Confirmer l'exactitude de la valeur la plus récente.
     </label>
+
+    {#if parameter.last_value_still_valid_on !== undefined}
+      <p class="my-2 text-xs text-gray-500">
+        La valeur la plus récente a été confirmée le {dateFormatter.format(
+          new Date(parameter.last_value_still_valid_on),
+        )}
+      </p>
+    {/if}
   </div>
 </div>
 

packages/editor/src/lib/components/parameters/ValueEdit.svelte

@@ -39,7 +39,11 @@
 
   let { data } = $derived($page)
 
-  let { unitByName, units } = $derived(data)
+  let { languageCode, unitByName, units } = $derived(data)
+
+  let dateFormatter = $derived(
+    new Intl.DateTimeFormat(languageCode, { dateStyle: "short" }),
+  )
 
   function addInstantReferencesAndValue() {
     instantReferencesAndValueArray = [
@@ -257,6 +261,14 @@
         />
         Confirmer l'exactitude de la valeur la plus récente.
       </label>
+
+      {#if parameter.last_value_still_valid_on !== undefined}
+        <p class="my-2 text-xs text-gray-500">
+          La valeur la plus récente a été confirmée le {dateFormatter.format(
+            new Date(parameter.last_value_still_valid_on),
+          )}
+        </p>
+      {/if}
     </div>
   </div>