fix: quantization in /configure, HNSW defaults in POST /collections, filter_metadata in search/file

gateway/main.py

@@ -246,6 +246,7 @@ async def vectors_search_file(
     hnsw_ef: Optional[int] = Form(None),
     exact: bool = Form(False),
     indexed_only: bool = Form(False),
+    filter_metadata_json: Optional[str] = Form(None),
 ):
     data = await file.read()
     fields: Dict[str, Any] = {"limit": int(limit), "exact": exact, "indexed_only": indexed_only}
@@ -255,6 +256,8 @@ async def vectors_search_file(
         fields["collection"] = collection
     if hnsw_ef is not None:
         fields["hnsw_ef"] = int(hnsw_ef)
+    if filter_metadata_json is not None:
+        fields["filter_metadata_json"] = filter_metadata_json
     async with httpx.AsyncClient(timeout=VISION_TIMEOUT) as client:
         return await _post_file(client, f"{QDRANT_SVC_URL}/search/file", data, fields)