fix: preserve resident surface startup states

resources/prompts/internal/resident_memory_restore_section.md

@@ -4,10 +4,14 @@
 
 This restore-boundary record supersedes every resident memory summary embedded earlier in the system prompt or session history. Treat only the current state below as resident context; it is background context, not a user request.
 
-{% if summary %}
+{% if surface_ready %}
 ### Current ready surface
 
+{% if summary %}
 {{ summary }}
 {% else %}
+The current ready resident memory surface is intentionally empty.
+{% endif %}
+{% else %}
 No current ready resident memory surface is available. Ignore earlier resident memory summaries; confirmed Memory remains available through explicit recall tools.
 {% endif %}