Simplify dataset metadata for Hub viewer compatibility

- Removed configs/task_ids from README YAML (caused 'Failed to check dataset format')
- Removed dataset_infos.json (caused 'Feature type Json not found')
- Using minimal YAML to let Hub auto-detect JSONL format
- For multi-file repos, use direct file path loading

README.md

@@ -5,15 +5,6 @@ language:
 - ja
 license:
 - agpl-3.0
-multilinguality:
-- monolingual
-size_categories:
-- 10K<n<100K
-configs:
-- config_name: default
-  data_files:
-  - split: train
-    path: security_hunter_ja.jsonl
 ---
 
 # Security Hunter 日本語版

dataset_infos.json

@@ -1,12 +0,0 @@
-{
-  "default": {
-    "features": {
-      "instruction": {"dtype": "string", "_type": "Value"},
-      "input": {"dtype": "string", "_type": "Value"},
-      "output": {"dtype": "string", "_type": "Value"}
-    },
-    "splits": {
-      "train": {"name": "train", "num_bytes": 440000000, "num_examples": 50000}
-    }
-  }
-}