balance: comprehensive game balance pass (#103-#123) (#124)

## Summary

Comprehensive balance pass addressing 20 tickets (#103–#122) plus one audit-discovered fix (#123), ensuring no player soft-locks and aligning all content counts with achievements and progression milestones.

### Changes

- **Equipment** (#103–#111): Differentiated all stat pairs so every piece has a unique bonus combination; added missing stats to `eternal_flame` and increased `eternal_prism` multiplier to justify cost tier
- **Recipes** (#112–#115): Added 4 cross-zone crafting recipes requiring materials from multiple zones to incentivise exploration breadth
- **Achievements** (#116–#118): Aligned `fully_equipped` (40→65), `quest_eternal` (72→95), and `boss_eternal` (60→72) thresholds with actual content counts; updated `devourer_slayer` description
- **Quest CP scaling** (#120–#122): Verified and corrected combat power requirements across all zones to follow consistent 4×/4× progression pattern
- **Zone file ordering** (#123): Swapped Frozen Peaks and Shadow Marshes quest sections so file order matches the actual unlock chain (no gameplay change)

### Tickets Closed

Closes #103
Closes #104
Closes #105
Closes #106
Closes #107
Closes #108
Closes #109
Closes #110
Closes #111
Closes #112
Closes #113
Closes #114
Closes #115
Closes #116
Closes #117
Closes #118
Closes #120
Closes #121
Closes #122
Closes #123

✨ This PR was created with help from Hikari~ 🌸

Reviewed-on: #124
Co-authored-by: Hikari <hikari@nhcarrigan.com>
Co-committed-by: Hikari <hikari@nhcarrigan.com>

apps/web/src/data/codex.ts

@@ -2752,8 +2752,8 @@ export const CODEX_ENTRIES: Array<CodexEntry> = [
   {
     content:
       "The ancient books of magic acquired for the guild's mages contained techniques that their trainers had either not known or had chosen not to teach. The omission, in most cases, appeared to be deliberate — the techniques worked but produced results that the academies found uncomfortable to endorse. Your guild finds them extremely comfortable to have, and the mage output doubled from the application of knowledge that had been sitting in books waiting for someone to act on it.",
-    id:         "upgrade_mage_1",
-    sourceId:   "mage_1",
+    id:         "upgrade_apprentice_1",
+    sourceId:   "apprentice_1",
     sourceType: "upgrade",
     title:      "Arcane Tomes: The Written Knowledge",
     zoneId:     "guild_library",
@@ -2761,8 +2761,8 @@ export const CODEX_ENTRIES: Array<CodexEntry> = [
   {
     content:
       "The sacred ceremonies that your clerics now perform before and during operations were developed by your head cleric over six months of experimentation that their deity appears to have sanctioned, based on the results. The rites formalise the relationship between divine power and operational output into a repeatable process. Doubled cleric output is the result of making the exceptional ordinary through the discipline of ceremony.",
-    id:         "upgrade_cleric_1",
-    sourceId:   "cleric_1",
+    id:         "upgrade_acolyte_1",
+    sourceId:   "acolyte_1",
     sourceType: "upgrade",
     title:      "Holy Rites: The Sacred Routine",
     zoneId:     "guild_library",