Adds removal-detection: when --previous-manifest <path> is given,
the converter diffs the previous publish against current packwiz state
and emits modify[].type=remove entries for mods/resourcepacks/etc that
disappeared, using simple-mod-sync's on-disk naming convention as the
regex pattern.
Reverse-engineered from upstream source:
- simple-mod-sync writes <sanitized_name>-<sanitized_version>.<ext>
- StringUtils.sanitize strips [^a-zA-Z0-9.\-_]
- GetOlderVersion() finds files starting with <name>- and auto-deletes
on version bumps. So version upgrades need no converter handling;
only full removals do.
8 new tests including end-to-end CLI verification with a synthetic
previous manifest. 23/23 pass.
claude-timemachine
438b1f7c65