Refactor AI daily report pipeline

tests/test_llm_utils.py

@@ -0,0 +1,17 @@
+import unittest
+
+from ai_daily_report.llm import parse_json_object
+
+
+class LlmUtilsTests(unittest.TestCase):
+    def test_parse_json_object_strips_markdown_fence(self):
+        self.assertEqual(parse_json_object('```json\n{"ok": true}\n```'), {"ok": True})
+
+    def test_parse_json_object_raises_without_json(self):
+        with self.assertRaises(ValueError):
+            parse_json_object("not json")
+
+
+if __name__ == "__main__":
+    unittest.main()
+