fix(memory): make cortex synthesis non-blocking

Author: vsumner

prompts/en/channel.md.j2

@@ -198,7 +198,7 @@ When in doubt, skip. Being a lurker who speaks when it matters is better than be
 {{ knowledge_synthesis }}
 {%- endif %}
 
-{%- if memory_bulletin and not working_memory and not knowledge_synthesis %}
+{%- if memory_bulletin and not knowledge_synthesis %}
 ## Memory Context
 
 {{ memory_bulletin }}