chore: remove time_type default value and check activity form time type validity

src/figma-make/components/pages/master-data/activity/MasterAktivitasContent.tsx

@@ -144,7 +144,7 @@ export function MasterAktivitasContent() {
     id: '',
     name: '',
     description: '',
-    time_type: 'umum',
+    time_type: '',
   });
 
   // Phase handlers
@@ -273,7 +273,7 @@ export function MasterAktivitasContent() {
       return;
     }
     setActivityModalMode('create');
-    setActivityForm({ id: '', name: '', description: '', time_type: 'umum' });
+    setActivityForm({ id: '', name: '', description: '', time_type: '' });
     setShowActivityModal(true);
   };
 
@@ -289,16 +289,25 @@ export function MasterAktivitasContent() {
   };
 
   const handleSaveActivity = async () => {
-    if (!activityForm.name.trim()) {
+    const isTimeTypeValid = Boolean(activityForm.time_type);
+    const isNameValid = Boolean(activityForm.name.trim());
+    const isNameLengthValid = activityForm.name.trim().length >= 3;
+
+    if (!isNameValid) {
       toast.error('Nama aktivitas harus diisi');
       return;
     }
 
-    if (activityForm.name.trim().length < 3) {
+    if (!isNameLengthValid) {
       toast.error('Nama aktivitas minimal 3 karakter!');
       return;
     }
 
+    if (!isTimeTypeValid) {
+      toast.error('Tipe waktu harus diisi');
+      return;
+    }
+
     if (!selectedPhase) {
       toast.error('Pilih phase terlebih dahulu');
       return;
@@ -352,7 +361,7 @@ export function MasterAktivitasContent() {
       }
 
       setShowActivityModal(false);
-      setActivityForm({ id: '', name: '', description: '', time_type: 'umum' });
+      setActivityForm({ id: '', name: '', description: '', time_type: '' });
     } catch (error) {
       console.error('Error saving activity:', error);
       toast.error('Terjadi kesalahan saat menyimpan aktivitas');