feat: content expansion, prestige shop, and offline earnings improvements

- Expand content to 18 zones, 72 bosses, 95 quests, 32 adventurer tiers
- Add prestige shop with 24 runestone upgrades across 5 categories
- Add PrestigeUpgrade type, data files, API routes, and frontend panel
- Fix offline earnings to include equipment and runestone multipliers
- Add offline essence calculation alongside offline gold
- Update OfflineModal to display both gold and essence earned
- Add IDEAS.md for tracking planned features

apps/api/src/data/adventurers.ts

@@ -232,4 +232,125 @@ export const DEFAULT_ADVENTURERS: Adventurer[] = [
     count: 0,
     unlocked: false,
   },
+  {
+    id: "aether_weaver",
+    name: "Aether Weaver",
+    class: "mage",
+    level: 22,
+    goldPerSecond: 800_000_000,
+    essencePerSecond: 220_000,
+    combatPower: 2_700_000_000,
+    count: 0,
+    unlocked: false,
+  },
+  {
+    id: "titan_warrior",
+    name: "Titan Warrior",
+    class: "warrior",
+    level: 23,
+    goldPerSecond: 2_500_000_000,
+    essencePerSecond: 600_000,
+    combatPower: 8_000_000_000,
+    count: 0,
+    unlocked: false,
+  },
+  {
+    id: "nexus_sage",
+    name: "Nexus Sage",
+    class: "mage",
+    level: 24,
+    goldPerSecond: 7_500_000_000,
+    essencePerSecond: 1_600_000,
+    combatPower: 24_000_000_000,
+    count: 0,
+    unlocked: false,
+  },
+  {
+    id: "cosmos_knight",
+    name: "Cosmos Knight",
+    class: "paladin",
+    level: 25,
+    goldPerSecond: 22_000_000_000,
+    essencePerSecond: 4_500_000,
+    combatPower: 72_000_000_000,
+    count: 0,
+    unlocked: false,
+  },
+  {
+    id: "astral_sovereign",
+    name: "Astral Sovereign",
+    class: "warrior",
+    level: 26,
+    goldPerSecond: 65_000_000_000,
+    essencePerSecond: 12_000_000,
+    combatPower: 200_000_000_000,
+    count: 0,
+    unlocked: false,
+  },
+  {
+    id: "primordial_mage",
+    name: "Primordial Mage",
+    class: "mage",
+    level: 27,
+    goldPerSecond: 200_000_000_000,
+    essencePerSecond: 35_000_000,
+    combatPower: 600_000_000_000,
+    count: 0,
+    unlocked: false,
+  },
+  {
+    id: "reality_warden",
+    name: "Reality Warden",
+    class: "paladin",
+    level: 28,
+    goldPerSecond: 600_000_000_000,
+    essencePerSecond: 100_000_000,
+    combatPower: 1_800_000_000_000,
+    count: 0,
+    unlocked: false,
+  },
+  {
+    id: "infinity_ranger",
+    name: "Infinity Ranger",
+    class: "ranger",
+    level: 29,
+    goldPerSecond: 1_800_000_000_000,
+    essencePerSecond: 300_000_000,
+    combatPower: 5_500_000_000_000,
+    count: 0,
+    unlocked: false,
+  },
+  {
+    id: "oblivion_paladin",
+    name: "Oblivion Paladin",
+    class: "paladin",
+    level: 30,
+    goldPerSecond: 5_500_000_000_000,
+    essencePerSecond: 850_000_000,
+    combatPower: 16_000_000_000_000,
+    count: 0,
+    unlocked: false,
+  },
+  {
+    id: "transcendent_rogue",
+    name: "Transcendent Rogue",
+    class: "rogue",
+    level: 31,
+    goldPerSecond: 16_000_000_000_000,
+    essencePerSecond: 2_500_000_000,
+    combatPower: 50_000_000_000_000,
+    count: 0,
+    unlocked: false,
+  },
+  {
+    id: "omniversal_champion",
+    name: "Omniversal Champion",
+    class: "warrior",
+    level: 32,
+    goldPerSecond: 50_000_000_000_000,
+    essencePerSecond: 7_000_000_000,
+    combatPower: 150_000_000_000_000,
+    count: 0,
+    unlocked: false,
+  },
 ];