chore: clean .gitattributes, only track large JSONs with LFS

.gitattributes

@@ -34,11 +34,6 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.zst filter=lfs diff=lfs merge=lfs -text
 *tfevents* filter=lfs diff=lfs merge=lfs -text
 *.gguf filter=lfs diff=lfs merge=lfs -text
-0.6B/tokenizer.json filter=lfs diff=lfs merge=lfs -text
-8/QwenInstruct_Dataset.json filter=lfs diff=lfs merge=lfs -text
-Qwen3-Embedding-0___6B/tokenizer.json filter=lfs diff=lfs merge=lfs -text
+
 **/tokenizer.json filter=lfs diff=lfs merge=lfs -text
-**/*Dataset.json filter=lfs diff=lfs merge=lfs -text
-**/merges.txt filter=lfs diff=lfs merge=lfs -text
-**/vocab.json filter=lfs diff=lfs merge=lfs -text
-**/*.json filter=lfs diff=lfs merge=lfs -text
+8/QwenInstruct_Dataset.json filter=lfs diff=lfs merge=lfs -text