- gate.php : ETag now derived from size+mtime instead of md5_file($zip).
Previously the gate hashed the entire 14 GB ZIP on every HEAD/GET call
(including each of 8 parallel segments) → 30s-5min preparation lag for
clients before the first byte. Now <1ms per request.
- SignManifest : disk-backed cache for SHA-256 keyed by (path,size,mtime).
Re-signing 5×14 GB versions used to take ~25 min, now ~1s when nothing
changed. New "Force re-hash" toggle in admin to ignore the cache.
- versions.php : per-row "🔁 Hash" button to sign a single version, plus
a "⚙ Hash" dropdown to toggle hashAlgorithm:none for builds where the
user accepts skipping client-side verification (manifest stays signed
Ed25519, only the per-ZIP SHA-256 verification is bypassed).
- DownloadUrl.php : signed-URL TTL bumped 1h → 6h to cover slow ADSL users
who need >1h to finish a 14 GB download.
- .gitignore : track server/builds/.htaccess + gate.php (still ignore the
actual ZIP/exe binaries).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
