Refactor AI daily report pipeline

tests/test_config_loading.py

@@ -0,0 +1,27 @@
+import unittest
+from pathlib import Path
+
+from ai_daily_report.config import load_source_configs
+from ai_daily_report.sources.registry import get_source_fetcher
+
+
+ROOT = Path(__file__).resolve().parents[1]
+
+
+class ConfigLoadingTests(unittest.TestCase):
+    def test_load_source_configs_from_json(self):
+        configs = load_source_configs(ROOT / "config" / "sources.json")
+
+        self.assertGreaterEqual(len(configs), 5)
+        self.assertEqual(configs[0].name, "AI HOT")
+        self.assertEqual(configs[0].type, "aihot")
+
+    def test_all_configured_source_types_are_registered(self):
+        configs = load_source_configs(ROOT / "config" / "sources.json")
+
+        for config in configs:
+            self.assertTrue(callable(get_source_fetcher(config.type)))
+
+
+if __name__ == "__main__":
+    unittest.main()