econ: tier system foundation (00_tier_system.js)

KubeJS module that owns the 13-tier civic ladder per economy doc §4a.
Authoritative source for TIER_CONFIG (per-tier perks: cost, wilderness
chunks, plot slots, daily bounty slots, shop fee discount, chat
colour, join broadcast).

Player tier stored as int in player.persistentData.bnsTier; default
1 (Peasant), set on first login.

Admin commands (op level 2):
  /bns admin tier get <player>
  /bns admin tier set <player> <1-13>
  /bns admin tier list

Module-local pattern (KubeJS Rhino runs scripts in strict mode -- no
globalThis, no bare-assignment globals). Other economy scripts will
duplicate TIER_CONFIG and use player.persistentData.bnsTier directly
to read tier rather than trying to import. See feedback-kubejs-rhino-
gotchas memory.

FTB Ranks will mirror this once the bnstoolkit mod ships -- ranks
will carry the FTB Chunks permission nodes. For now the NBT is the
single source of truth and admin promotes manually with /bns admin
tier set.

Verified: server boots clean, KubeJS loads with 0 errors. First-join
hook initialises new players to tier 1.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

pack/pack.lock.json

@@ -1,13 +1,13 @@
 {
   "$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": "0.32.0",
+  "version": "0.33.0",
   "minecraft": "1.21.1",
   "loader": {
     "type": "neoforge",
     "version": "21.1.228"
   },
-  "lockedAt": "2026-06-06T23:21:32Z",
+  "lockedAt": "2026-06-06T23:34:21Z",
   "mods": [
     {
       "source": "modrinth",