fix(mtmd): jinja typo error in Gemma4ChatHandler

Author: craftingmod

llama_cpp/llama_multimodal.py

@@ -2831,10 +2831,10 @@ class Gemma4ChatHandler(MTMDChatHandler):
         "                        {%- endif -%}\n"
         "                    {%- elif item.get('type') in ['video', 'video_url'] -%}\n"
         "                        {%- if item.get('type') == 'video_url' -%}\n"
-        "                            {%- set video_val = part['video_url'] if part['video_url'] is string else part['video_url']['url'] -%}\n"
+        "                            {%- set video_val = item['video_url'] if item['video_url'] is string else item['video_url']['url'] -%}\n"
         "                            {{- '<|video|>' + video_val -}}\n"
         "                        {%- elif item.get('type') == 'video' -%}\n"
-        "                            {%- set video_val = part['video'] if part['video'] is string else part['video']['url'] -%}\n"
+        "                            {%- set video_val = item['video'] if item['video'] is string else item['video']['url'] -%}\n"
         "                            {{- '<|video|>' + video_val -}}\n"
         "                        {%- endif -%}\n"
         "                    {%- endif -%}\n"