CRITICAL FIX: Remove broken locals() checks that prevented translation

Problem: Translation always required Apertus-8B even for Coptic→English
Root cause: Streamlit's execution model means variables defined at module level
aren't in locals() when checked inside with/try blocks

Solution:
1. Initialize analysis_type, target_lang, target_language_name to None at top
2. Replace all 'variable in locals()' checks with direct None checks
3. Use 'analysis_type is not None' instead of 'analysis_type' in locals()'
4. Use 'target_lang == "en"' instead of 'target_lang in locals() and target_lang == "en"'

Changed lines:
- Line 293-295: Added variable initialization
- Line 524: Removed locals() check for dependency_parse
- Line 571: Removed locals() check for parse_and_translate
- Line 644: Changed to 'is not None' check
- Line 673: Removed locals() check for translation
- Line 675: Removed locals() check for target_lang

Now Coptic→English translation works WITHOUT requiring Apertus-8B API token!

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

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

apertus_ui.py

@@ -289,8 +289,13 @@ LANGUAGES = {
 
 st.set_page_config(page_title="Apertus Chat", layout="wide")
 
+# Initialize variables (so they're accessible throughout the script)
+analysis_type = None
+target_lang = None
+target_language_name = "English"
+
 # Language selector
-selected_lang = st.selectbox("Language / Langue / Idioma", 
+selected_lang = st.selectbox("Language / Langue / Idioma",
                            options=list(LANGUAGES.keys()),
                            format_func=lambda x: LANGUAGES[x])
 
@@ -516,7 +521,7 @@ for message in st.session_state.messages:
 # User input
 if prompt := st.chat_input("Type your message..."):
     # Handle dependency parsing (doesn't need API token)
-    if selected_lang in ['cop', 'cop-sa', 'cop-bo'] and 'analysis_type' in locals() and analysis_type == 'dependency_parse':
+    if selected_lang in ['cop', 'cop-sa', 'cop-bo'] and analysis_type == 'dependency_parse':
         st.session_state.messages.append({"role": "user", "content": prompt})
 
         with st.chat_message("user"):
@@ -563,7 +568,7 @@ if prompt := st.chat_input("Type your message..."):
         inference_client = get_inference_client(hf_token_input)
 
     # Handle parse_and_translate mode
-    if selected_lang in ['cop', 'cop-sa', 'cop-bo'] and 'analysis_type' in locals() and analysis_type == 'parse_and_translate':
+    if selected_lang in ['cop', 'cop-sa', 'cop-bo'] and analysis_type == 'parse_and_translate':
         st.session_state.messages.append({"role": "user", "content": prompt})
 
         with st.chat_message("user"):
@@ -636,7 +641,7 @@ if prompt := st.chat_input("Type your message..."):
         st.stop()  # Special handling complete
 
     # Standard translation/analysis handling
-    if selected_lang in ['cop', 'cop-sa', 'cop-bo'] and 'analysis_type' in locals():
+    if selected_lang in ['cop', 'cop-sa', 'cop-bo'] and analysis_type is not None:
         # For translation, use raw text without prompt template
         if analysis_type == 'translation':
             full_prompt = prompt
@@ -665,9 +670,9 @@ if prompt := st.chat_input("Type your message..."):
     with st.chat_message("assistant"):
         try:
             # Check if this is a Coptic→English translation task
-            if selected_lang in ['cop', 'cop-sa', 'cop-bo'] and 'analysis_type' in locals() and analysis_type == 'translation':
+            if selected_lang in ['cop', 'cop-sa', 'cop-bo'] and analysis_type == 'translation':
                 # Use local Coptic translator (Norelad/coptic-megalaa-finetuned)
-                if 'target_lang' in locals() and target_lang == 'en':
+                if target_lang == 'en':
                     with st.spinner("🤖 Translating with local Coptic translator..."):
                         translation = translate_coptic_to_english(prompt, dialect=selected_lang)
                         st.markdown(translation)