Update duckdb index files

.gitattributes

@@ -648,3 +648,4 @@ default/wordpress.meta/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/workplace.meta/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/windowsphone.meta/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/webapps/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/worldbuilding.meta/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/worldbuilding.meta/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:97bd32ed5adfbe5d8145637733b57cfd8c62bf0b0b7e08885ef373dad2ef5bd7
+size 30683136