add claim_statement object

Frontend/lib/mih_objects/claim_statement_file.dart

@@ -0,0 +1,40 @@
+class ClaimStatementFile {
+  final int idclaim_statement_file;
+  final String app_id;
+  final String business_id;
+  final String insert_date;
+  final String file_path;
+  final String file_name;
+
+  const ClaimStatementFile({
+    required this.idclaim_statement_file,
+    required this.app_id,
+    required this.business_id,
+    required this.insert_date,
+    required this.file_path,
+    required this.file_name,
+  });
+
+  factory ClaimStatementFile.fromJson(Map<String, dynamic> json) {
+    return switch (json) {
+      {
+        "idclaim_statement_file": int idclaim_statement_file,
+        'app_id': String app_id,
+        'business_id': String business_id,
+        'insert_date': String insert_date,
+        'file_path': String file_path,
+        'file_name': String file_name,
+      } =>
+        ClaimStatementFile(
+          idclaim_statement_file: idclaim_statement_file,
+          app_id: app_id,
+          business_id: business_id,
+          insert_date: insert_date,
+          file_path: file_path,
+          file_name: file_name,
+        ),
+      _ =>
+        throw const FormatException('Failed to load Claim Statement Object.'),
+    };
+  }
+}