Fix indentation error in processing flow

- Fix IndentationError at line 862 in app.py
- Ensure proper indentation throughout processing block
- Prevent syntax errors from breaking the app

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

app.py

@@ -859,54 +859,55 @@ if st.session_state.get("processing"):
     }
     </style>
     """, unsafe_allow_html=True)
-        prompt = st.session_state.get("current_question")
-        model_name = st.session_state.get("current_model")
-        
-        try:
-            response = ask_question(model_name=model_name, question=prompt)
-            
-            if not isinstance(response, dict):
-                response = {
-                    "role": "assistant",
-                    "content": "Error: Invalid response format",
-                    "gen_code": "",
-                    "ex_code": "",
-                    "last_prompt": prompt,
-                    "error": "Invalid response format",
-                    "timestamp": datetime.now().strftime("%H:%M")
-                }
-            
-            response.setdefault("role", "assistant")
-            response.setdefault("content", "No content generated")
-            response.setdefault("gen_code", "")
-            response.setdefault("ex_code", "")
-            response.setdefault("last_prompt", prompt)
-            response.setdefault("error", None)
-            response.setdefault("timestamp", datetime.now().strftime("%H:%M"))
+    
+    prompt = st.session_state.get("current_question")
+    model_name = st.session_state.get("current_model")
+    
+    try:
+        response = ask_question(model_name=model_name, question=prompt)
         
-        except Exception as e:
+        if not isinstance(response, dict):
             response = {
                 "role": "assistant",
-                "content": f"Sorry, I encountered an error: {str(e)}",
+                "content": "Error: Invalid response format",
                 "gen_code": "",
                 "ex_code": "",
                 "last_prompt": prompt,
-                "error": str(e),
+                "error": "Invalid response format",
                 "timestamp": datetime.now().strftime("%H:%M")
             }
-
-        st.session_state.responses.append(response)
-        st.session_state["last_prompt"] = prompt
-        st.session_state["last_model_name"] = model_name
-        st.session_state.processing = False
         
-        # Clear processing state
-        if "current_model" in st.session_state:
-            del st.session_state.current_model
-        if "current_question" in st.session_state:
-            del st.session_state.current_question
+        response.setdefault("role", "assistant")
+        response.setdefault("content", "No content generated")
+        response.setdefault("gen_code", "")
+        response.setdefault("ex_code", "")
+        response.setdefault("last_prompt", prompt)
+        response.setdefault("error", None)
+        response.setdefault("timestamp", datetime.now().strftime("%H:%M"))
         
-        st.rerun()
+    except Exception as e:
+        response = {
+            "role": "assistant",
+            "content": f"Sorry, I encountered an error: {str(e)}",
+            "gen_code": "",
+            "ex_code": "",
+            "last_prompt": prompt,
+            "error": str(e),
+            "timestamp": datetime.now().strftime("%H:%M")
+        }
+
+    st.session_state.responses.append(response)
+    st.session_state["last_prompt"] = prompt
+    st.session_state["last_model_name"] = model_name
+    st.session_state.processing = False
+    
+    # Clear processing state
+    if "current_model" in st.session_state:
+        del st.session_state.current_model
+    if "current_question" in st.session_state:
+        del st.session_state.current_question
+    
+    st.rerun()
 
 # Close chat container
 st.markdown("</div>", unsafe_allow_html=True)