Address code review feedback: improve ID generation stability

Co-authored-by: xuyushun441-sys <255036401+xuyushun441-sys@users.noreply.github.com>

Author: Copilot

packages/views/src/ObjectCalendar.tsx

@@ -199,7 +199,7 @@ export const ObjectCalendar: React.FC<ObjectCalendarProps> = ({
       const color = colorField ? record[colorField] : undefined;
 
       return {
-        id: record.id || record._id || String(index),
+        id: record.id || record._id || `event-${index}`,
         title,
         start: startDate ? new Date(startDate) : new Date(),
         end: endDate ? new Date(endDate) : undefined,

packages/views/src/ObjectGantt.tsx

@@ -196,7 +196,7 @@ export const ObjectGantt: React.FC<ObjectGanttProps> = ({
       const dependencies = dependenciesField ? record[dependenciesField] : [];
 
       return {
-        id: record.id || record._id || String(index),
+        id: record.id || record._id || `task-${index}`,
         title,
         start: startDate ? new Date(startDate) : new Date(),
         end: endDate ? new Date(endDate) : new Date(),

packages/views/src/ObjectKanban.tsx

@@ -214,8 +214,8 @@ export const ObjectKanban: React.FC<ObjectKanbanProps> = ({
         id: String(value),
         title: String(value),
         summary,
-        cards: columnCards.map(record => ({
-          id: record.id || record._id || String(Math.random()),
+        cards: columnCards.map((record, idx) => ({
+          id: record.id || record._id || `${value}-${idx}`,
           title: record[displayColumns[0]] || record.name || record.title || 'Untitled',
           description: displayColumns[1] ? record[displayColumns[1]] : undefined,
           data: record,

packages/views/src/ObjectMap.tsx

@@ -267,7 +267,7 @@ export const ObjectMap: React.FC<ObjectMapProps> = ({
         const description = mapConfig.descriptionField ? record[mapConfig.descriptionField] : undefined;
 
         return {
-          id: record.id || record._id || String(index),
+          id: record.id || record._id || `marker-${index}`,
           title,
           description,
           coordinates,