tests: add tests for dashbot utils(cv: 100)

test/dashbot/utils/safe_parse_json_message_test.dart

@@ -0,0 +1,37 @@
+import 'package:apidash/dashbot/core/utils/safe_parse_json_message.dart';
+import 'package:test/test.dart';
+
+void main() {
+  group('MessageJson.safeParse', () {
+    test('parses valid JSON object', () {
+      final m = MessageJson.safeParse('{"a":1,"b":"x"}');
+      expect(m, containsPair('a', 1));
+      expect(m['b'], 'x');
+    });
+
+    test('returns empty map for non-object top-level JSON', () {
+      final m = MessageJson.safeParse('[1,2,3]');
+      expect(m, isEmpty);
+    });
+
+    test('extracts object from markdown fenced code block', () {
+      const input =
+          '''Here is your result:\n```json\n{\n  "ok": true,\n  "count": 2\n}\n```\nThanks''';
+      final m = MessageJson.safeParse(input);
+      expect(m['ok'], true);
+      expect(m['count'], 2);
+    });
+
+    test('throws FormatException on invalid JSON with no braces slice', () {
+      expect(() => MessageJson.safeParse('totally invalid'),
+          throwsFormatException);
+    });
+
+    test('falls back to slice between first { and last }', () {
+      const input = 'prefix {"z":42, "k":"v"} suffix';
+      final m = MessageJson.safeParse(input);
+      expect(m['z'], 42);
+      expect(m['k'], 'v');
+    });
+  });
+}