Update src/app.py

src/app.py

@@ -244,6 +244,21 @@ with st.sidebar:
     
     # Model Selector
     st.header("🧠 Intelligence")
+
+    # 1. EMBEDDING MODEL SELECTOR (New!)
+    st.subheader("1. Embeddings (The Memory)")
+    embed_options = {
+        "Standard (All-MiniLM, 384d)": "sentence-transformers/all-MiniLM-L6-v2",
+        "High-Perf (MPNet, 768d)": "sentence-transformers/all-mpnet-base-v2",
+        "OpenAI Small (1536d)": "text-embedding-3-small"
+    }
+    
+    embed_choice_label = st.selectbox("Select Embedding Model", list(embed_options.keys()))
+    # Store the actual API string in session state
+    st.session_state.active_embed_model = embed_options[embed_choice_label]
+    
+    # 2. LLM SELECTOR (The Brain)
+    st.subheader("2. Chat Model (The Brain)")
     model_map = {
         "Granite 4 (IBM)": "granite4:latest", 
         "Llama 3.2 (Meta)": "llama3.2:latest",
@@ -413,7 +428,8 @@ with tab2:
                             file_path=temp_path, 
                             username=st.session_state.username, 
                             index_name=st.session_state.active_index,
-                            strategy=chunk_strategy
+                            strategy=chunk_strategy,
+                            embed_model_name=st.session_state.active_embed_model
                         )
                         
                         if ok: