Update duckdb index files

.gitattributes

@@ -52,3 +52,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpg filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
+epts--kanji-serif/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

epts--kanji-serif/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4f938b3dbfbda5ea1c1f624f2994aefd6b7573f807c6ba689fe87a76564f0b04
+size 35139584