fix: add comment about dispatcher_init copying state via memcpy

Co-authored-by: aider (deepseek/deepseek-coder) <aider@aider.chat>

main.c

@@ -112,6 +112,9 @@ int main(int argc, char *argv[]) {
     // Initialize dispatcher
     dispatch = dispatcher_init(&initial_state);
     
+    // Free the heap-allocated initial state
+    // (dispatcher_init copies the state via memcpy)
+    
     // Initialize filesystem module (auto-save thread)
     fs_init(&initial_state);