Use mD5/shA1 keys in Hasheous lookup payload

Match the json-patch camelCase key names the Hasheous endpoint expects,
and update the lookup_rom test assertions accordingly.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: gantoine

backend/handler/metadata/hasheous_handler.py

@@ -260,11 +260,11 @@ async def lookup_rom(self, platform_slug: str, files: list[RomFile]) -> Hasheous
             if file.chd_sha1_hash:
                 # CHD files are indexed by disc-data SHA1 only
                 # Raw file MD5/CRC are hashes of the container and won't match
-                file_hashes = {"sha1": file.chd_sha1_hash}
+                file_hashes = {"shA1": file.chd_sha1_hash}
             else:
                 file_hashes = {
-                    "md5": file.md5_hash,
-                    "sha1": file.sha1_hash,
+                    "mD5": file.md5_hash,
+                    "shA1": file.sha1_hash,
                     "crc": file.crc_hash,
                 }
 

backend/tests/handler/test_fastapi.py

@@ -361,8 +361,8 @@ async def test_lookup_rom_sends_all_top_level_file_hashes(
     mock_request.assert_called_once()
     sent_data = mock_request.call_args.kwargs["data"]
     assert sent_data == [
-        {"md5": "md5one", "sha1": "sha1one", "crc": "crcone"},
-        {"sha1": "chdsha1"},
+        {"mD5": "md5one", "shA1": "sha1one", "crc": "crcone"},
+        {"shA1": "chdsha1"},
     ]