Update app.py

app.py

@@ -179,7 +179,18 @@ with tab1:
                 st.error(f"🖼️ Image failed: {e}")
 
 # ------------------ Technical Tab ------------------
+
 with tab2:
+    with st.sidebar:
+        st.header("🛠️ Technical Tools")
+        if st.button("🧹 Clear Technical Chat"):
+            st.session_state.tech_messages = []
+            st.session_state.tech_thread_id = None
+            st.session_state.tech_results = []
+            st.session_state.tech_lightbox = None
+            st.session_state.tech_new_input = False
+            st.rerun()
+
     ASSISTANT_ID = "asst_DjvuWBc7tCvMbAhY7n1em4BZ"
     if "tech_messages" not in st.session_state:
         st.session_state.tech_messages = []