fix: improve type safety and error handling in arkts-development

- Replace Record<string, Object> with specific interface types for router params
- Add error handling catch block to list-page-template.ets
- Add clarification note for router.back() with params
- Improve type safety following ArkTS best practices

arkts-development/references/api-reference.md

@@ -65,24 +65,31 @@ router.back({
   url: 'pages/HomePage'
 });
 
-// Back with result
-router.back({
-  url: 'pages/HomePage',
-  params: { result: 'success' }
-});
-```
-
-### Get Parameters
-
-```typescript
-// In target page
-aboutToAppear(): void {
-  const params = router.getParams() as Record<string, Object>;
-  if (params) {
-    const id = params['id'] as number;
-    const title = params['title'] as string;
-  }
-}
+// Back with result
+router.back({
+  url: 'pages/HomePage',
+  params: { result: 'success' }
+});
+// Note: Previous page receives params via router.getParams()
+```
+
+### Get Parameters
+
+```typescript
+// Define expected params interface
+interface PageParams {
+  id: number;
+  title?: string;
+}
+
+// In target page
+aboutToAppear(): void {
+  const params = router.getParams() as PageParams;
+  if (params) {
+    const id = params.id;
+    const title = params.title;
+  }
+}
 ```
 
 ### Get Router State