feat(api): Initialize FastAPI app with health check

src/ea_chatbot/api/main.py

@@ -0,0 +1,25 @@
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+
+app = FastAPI(
+    title="Election Analytics Chatbot API",
+    description="Backend API for the LangGraph-based Election Analytics Chatbot",
+    version="0.1.0"
+)
+
+# Configure CORS
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"], # Adjust for production
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+@app.get("/health")
+async def health_check():
+    return {"status": "ok"}
+
+if __name__ == "__main__":
+    import uvicorn
+    uvicorn.run(app, host="0.0.0.0", port=8000)

tests/api/test_main.py

@@ -0,0 +1,9 @@
+from fastapi.testclient import TestClient
+from ea_chatbot.api.main import app
+
+client = TestClient(app)
+
+def test_health_check():
+    response = client.get("/health")
+    assert response.status_code == 200
+    assert response.json() == {"status": "ok"}