feat: add NER testing interface and evaluation statistics handling

web/pages/8_🏷️_NER_Testing.py

@@ -0,0 +1,19 @@
+import sys
+from pathlib import Path
+
+import streamlit as st
+
+# Add parent directory to Python path to access core modules
+parent_dir = Path(__file__).parent.parent.parent
+sys.path.insert(0, str(parent_dir))
+
+from web.interfaces.ner_testing import NERTesting
+
+st.set_page_config(page_title="NER Testing", page_icon="🏷️", layout="wide")
+
+if "config" in st.session_state:
+    ner_testing = NERTesting(st.session_state.config)
+    ner_testing.index()
+else:
+    st.error("Please run the main app first to initialize the configuration.")
+    st.markdown("Go back to the [main page](/) to start the application.")