add --emulator, --system, --standalone, --list-emulators, --list-systems
to verify.py and generate_pack.py. packs are RTU with data directories,
regional BIOS variants, and archive support.
validation: field per file (size, crc32, md5, sha1) with conflict
detection. by_path_suffix index in database.json for regional variant
resolution via dest_hint. restructure GameCube IPL to regional subdirs.
66 E2E tests, full pipeline verified.
generate_db.py now reads aliases from emulator YAMLs and indexes
them in database.json by_name. resolve_local_file in common.py
tries all alias names when the primary name fails to match.
beetle_psx alt_names renamed to aliases (was not indexed before).
snes9x BS-X.bios, np2kai FONT.ROM/ide.rom/pci.rom fallbacks,
all now formally declared as aliases and indexed.
verify --all and generate_pack --all pass with 0 regressions.
Fix variant name indexing: files in .variants/ now indexed under
canonical name (naomi2.zip instead of naomi2.zip.da79eca4).
Fix .zip detection for variant paths in verify.py.
Add composite MD5 matching in resolver for ZIP variants.
Add hikaru.zip (MAME 0.285, 6 ROMs) and segaboot.gcm (Triforce)
from archive.org. Both match Batocera expected MD5s.
Batocera 679/680 (1 untested: sc3000 private dump)
Recalbox 346/346 (100%)
Critical: stream large file downloads (OOM fix), fix basename match
in auto_fetch, include hashes in pack grouping fingerprint, handle
not_in_zip status in verify, fix escaped quotes in batocera parser.
Important: deduplicate shared group includes, catch coreinfo network
errors, fix NODEDUP path component match, fix CI word splitting on
spaces, replace bare except Exception in 3 files.
Minor: argparse in list_platforms, specific exceptions in download.py.
