feat(api): Implement JWT utility functions and configuration

tests/api/test_utils.py

@@ -0,0 +1,24 @@
+from datetime import timedelta
+from ea_chatbot.api.utils import create_access_token, decode_access_token
+
+def test_create_and_decode_access_token():
+    """Test that a token can be created and then decoded."""
+    data = {"sub": "test@example.com", "user_id": "123"}
+    token = create_access_token(data)
+    
+    decoded = decode_access_token(token)
+    assert decoded["sub"] == data["sub"]
+    assert decoded["user_id"] == data["user_id"]
+    assert "exp" in decoded
+
+def test_decode_invalid_token():
+    """Test that an invalid token returns None."""
+    assert decode_access_token("invalid-token") is None
+
+def test_expired_token():
+    """Test that an expired token returns None."""
+    data = {"sub": "test@example.com"}
+    # Create a token that expired 1 minute ago
+    token = create_access_token(data, expires_delta=timedelta(minutes=-1))
+    
+    assert decode_access_token(token) is None