Fix magic number and function name typo

- Add MAX_SAFETENSORS_HEADER_SIZE constant in metadata_extract.py
- Fix double 'compute' typo: compute_compute_blake3_hash_async → compute_blake3_hash_async

Amp-Thread-ID: https://ampcode.com/threads/T-019c3550-4dbc-7301-a5e8-e6e23aa2d7b1
Co-authored-by: Amp <amp@ampcode.com>

app/assets/services/hashing.py

@@ -18,7 +18,7 @@ def compute_blake3_hash(
         return _hash_file_obj(f, chunk_size)
 
 
-async def compute_compute_blake3_hash_async(
+async def compute_blake3_hash_async(
     fp: str | IO[bytes],
     chunk_size: int = DEFAULT_CHUNK,
 ) -> str:

app/assets/services/metadata_extract.py

@@ -17,6 +17,9 @@ from typing import Any
 # Supported safetensors extensions
 SAFETENSORS_EXTENSIONS = frozenset({".safetensors", ".sft"})
 
+# Maximum safetensors header size to read (8MB)
+MAX_SAFETENSORS_HEADER_SIZE = 8 * 1024 * 1024
+
 
 @dataclass
 class ExtractedMetadata:
@@ -163,7 +166,7 @@ class ExtractedMetadata:
         return rows
 
 
-def _read_safetensors_header(path: str, max_size: int = 8 * 1024 * 1024) -> dict[str, Any] | None:
+def _read_safetensors_header(path: str, max_size: int = MAX_SAFETENSORS_HEADER_SIZE) -> dict[str, Any] | None:
     """Read only the JSON header from a safetensors file.
 
     This is very fast - reads 8 bytes for header length, then the JSON header.