1. Build a basic chatbot using Gemini 2.0 flash

tests/test_graph.py

@@ -0,0 +1,10 @@
+import unittest
+from src.graph_builder import build_graph
+
+class TestGraph(unittest.TestCase):
+    def test_graph_runs(self):
+        graph = build_graph()
+        self.assertIsNotNone(graph)
+
+if __name__ == "__main__":
+    unittest.main()