fix: read redump bios dats from /bios/<code>

redump.info moved its BIOS DAT links from /static/bios/<name>.dat to one
route per system (/bios/PSX, /bios/PS2, /bios/GC, /bios/XBOX), served as
an attachment. The scraper matched only the old shape and found nothing.
Both shapes are read now.

Refreshed snapshot: the PS2 DAT moved from 2026-06-16 to 2026-10-10,
191 entries become 225 (34 mechacon, DVD and font ROMs added, the
ps2-dvd-302c.bin sha1 corrected, five descriptions completed). Only
the provenance fields of database.json change.

scripts/scraper/redump_dat_scraper.py

@@ -1,9 +1,11 @@
 """Fetch Redump BIOS DAT files and write a provenance snapshot.
 
-Redump serves BIOS DATs as static clrmamepro files linked from
-https://redump.info/downloads under /static/bios/. The downloads page
-is scanned for those links, so new BIOS DATs are picked up without
-code changes.
+Redump serves BIOS DATs as Logiqx files linked from
+https://redump.info/downloads. The links were static files under
+/static/bios/<name>.dat and are now one route per system,
+/bios/<CODE> (PSX, PS2, GC, XBOX), served as an attachment. The
+downloads page is scanned for either shape, so new BIOS DATs are
+picked up without code changes.
 
 Run manually, then commit the snapshot:
     python -m scripts.scraper.redump_dat_scraper --dry-run
@@ -40,6 +42,7 @@ def _fetch(url: str) -> str:
 def discover_bios_datfiles(downloads_html: str) -> list[str]:
     """Extract BIOS DAT paths from the downloads page."""
     paths = set(re.findall(r'href="(/static/bios/[^"]+\.dat)"', downloads_html))
+    paths.update(re.findall(r'href="(/bios/[A-Za-z0-9_-]+)"', downloads_html))
     return sorted(paths)