faz1_01: --target_tokens bilimsel gosterim kabul (5e7/7.5e9)

code/kod/faz1_01_tokenize_shard.py

@@ -51,7 +51,7 @@ def text_of(rec):
 def main():
     ap = argparse.ArgumentParser()
     ap.add_argument("--source", required=True, choices=list(SOURCES))
-    ap.add_argument("--target_tokens", type=int, default=5_000_000)
+    ap.add_argument("--target_tokens", type=lambda x: int(float(x)), default=5_000_000)  # 5e7/7.5e9 kabul
     ap.add_argument("--seq_len", type=int, default=2048)
     ap.add_argument("--seqs_per_shard", type=int, default=32768)  # ~256MB @2048 int32
     ap.add_argument("--out_dir", default="kod/data/shards")