rpo: ship default-enable config for ComputerCraft Recreated, bump 0.19.5

Resource Pack Overrides config field names extracted directly from the
mod's class files (default_packs + default_overrides confirmed via grep
on the .class strings). Config ships through defaultconfigs/ so it
seeds the player's local config on first run and respects later edits.

The 'default_position: TOP' override puts the ReCreated pack at the top
of the enabled-packs list so it takes precedence over the vanilla
ComputerCraft textures.

If the filename or schema turns out to be off when tested, it's a
one-line follow-up to fix.

pack/pack.lock.json

@@ -1,7 +1,7 @@
 {
   "$schema": "Brass-and-Sigil pack.lock.json - generated, do not edit by hand unless you know what you are doing",
   "name": "Brass and Sigil",
-  "version": "0.19.4",
+  "version": "0.19.5",
   "minecraft": "1.21.1",
   "loader": {
     "type": "neoforge",