Add tooling/render-pack.sh: renders all pack/**/*.tmpl with ${BASE_DOMAIN}
(no dnsmasq HOST_LAN_IP coupling) and rebuilds the packwiz index. Both
render-config.sh and add-custom-mod.sh now delegate to it.
CustomSkinLoader.json's skin API roots are no longer frozen — it becomes
CustomSkinLoader.json.tmpl, rendered like the mod metadata. .packwizignore
broadened to *.tmpl; rendered .json gitignored as build output.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Nine NeoForge 1.21.1 jars hosted under pack/custom/ with hand-written
mods/*.pw.toml (JEI + JER + JEProfessions, Jade + JadeAddons, Balm,
InventoryEssentials, MouseTweaks, CustomSkinLoader). Adds
CustomSkinLoader.json config; refreshes index.toml/pack.toml.
Jars are committed because external files have no upstream URL — the
pack/custom/ copy served by caddy is the source of truth.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
