fix date formatting and parsing logic

- Support time formatting in `formatDate` with `time` option.
- Improve parsing in `ISOToDate` to handle time information or date-only strings.

.changes/unreleased/Fixed-20250811-155212.yaml

@@ -0,0 +1,6 @@
+kind: Fixed
+body: fix date formatting in calendar range display
+time: 2025-08-11T15:52:12.949078671+02:00
+custom:
+    Issue: ""
+    SchemaChange: No schema change

src/Bundle/ChillCalendarBundle/Resources/public/vuejs/MyCalendarRange/App2.vue

@@ -104,7 +104,7 @@
                     event.title
                 }}</b>
                 <b v-else-if="event.extendedProps.is === 'range'"
-                    >{{ formatDate(event.startStr) }} -
+                    >{{ formatDate(event.startStr) }} - {{ formatDate(event.endStr, 'time') }}:
                     {{ event.extendedProps.locationName }}</b
                 >
                 <b v-else-if="event.extendedProps.is === 'local'">{{
@@ -296,9 +296,26 @@ const nextWeeks = computed((): Weeks[] =>
     }),
 );
 
-const formatDate = (datetime: string) => {
-    console.log(typeof datetime);
-    return ISOToDate(datetime);
+const formatDate = (datetime: string, format: null | 'time' = null) => {
+    const date = ISOToDate(datetime);
+    if (!date) return '';
+
+    if (format === 'time') {
+        return date.toLocaleTimeString('fr-FR', {
+            hour: '2-digit',
+            minute: '2-digit'
+        });
+    }
+
+    // French date formatting
+    return date.toLocaleDateString('fr-FR', {
+        weekday: 'short',
+        year: 'numeric',
+        month: 'short',
+        day: 'numeric',
+        hour: '2-digit',
+        minute: '2-digit'
+    });
 };
 
 const baseOptions = ref<CalendarOptions>({

src/Bundle/ChillMainBundle/Resources/public/chill/js/date.ts

@@ -37,8 +37,13 @@ export const ISOToDate = (str: string | null): Date | null => {
         return null;
     }
 
-    const [year, month, day] = str.split("-").map((p) => parseInt(p));
+    // If the string already contains time info, use it directly
+    if (str.includes('T') || str.includes(' ')) {
+        return new Date(str);
+    }
 
+    // Otherwise, parse date only
+    const [year, month, day] = str.split("-").map((p) => parseInt(p));
     return new Date(year, month - 1, day, 0, 0, 0, 0);
 };