feat: Add NaliiaBot API

tests/test_api.py

@@ -0,0 +1,27 @@
+import pytest
+from fastapi.testclient import TestClient
+from src.naliiabotapi.main import app
+from langchain_core.messages import HumanMessage
+
+
+@pytest.fixture
+def client():
+    client = TestClient(app)
+
+    return client
+
+def test_root(client):
+    response = client.get("/")
+
+    assert response.status_code == 200
+
+def test_health(client):
+    response = client.get("/health")
+
+    assert response.status_code == 200
+
+def test_chat(client):
+    response = client.post("/chat", json={"messages": "Hello, how are you?"})
+
+    assert response.status_code == 200
+    assert response.json() is not None