balance: crystal economy improvements (closes #165, #173, #215)

Early game: first_steps and goblin_camp quests now award a small
crystal bonus so the crystal economy is visible from turn one.

Mid-game income: click_deity (1M clicks) 5k→15k, prestige_master
(P10) 5k→15k, prestige_legend (P25) 25k→75k to close the gap
before the first large crystal-cost upgrade.

Crystal sinks: add crystal_pulse (3k→×1.5), crystal_surge
(20k→×2), and crystal_tempest (150k→×3) global upgrades to fill
the dead zone between crystal_mastery (600 crystals) and the
existing 2M+ adventurer upgrades.

Closes #165
Closes #173
Closes #215

apps/api/src/data/achievements.ts

@@ -247,7 +247,7 @@ export const defaultAchievements: Array<Achievement> = [
     icon:        "☄️",
     id:          "click_deity",
     name:        "Click Deity",
-    reward:      { crystals: 5000 },
+    reward:      { crystals: 15_000 },
     unlockedAt:  null,
   },
   // Endgame gold milestones
@@ -405,7 +405,7 @@ export const defaultAchievements: Array<Achievement> = [
     icon:        "💫",
     id:          "prestige_master",
     name:        "Master of Cycles",
-    reward:      { crystals: 5000 },
+    reward:      { crystals: 15_000 },
     unlockedAt:  null,
   },
   {
@@ -414,7 +414,7 @@ export const defaultAchievements: Array<Achievement> = [
     icon:        "🌠",
     id:          "prestige_legend",
     name:        "Legend of Eternity",
-    reward:      { crystals: 25_000 },
+    reward:      { crystals: 75_000 },
     unlockedAt:  null,
   },
   {

apps/api/src/data/quests.ts

@@ -19,6 +19,7 @@ export const defaultQuests: Array<Quest> = [
     prerequisiteIds: [],
     rewards:         [
       { amount: 500, type: "gold" },
+      { amount: 5, type: "crystals" },
       { targetId: "militia", type: "adventurer" },
     ],
     status: "available",
@@ -33,6 +34,7 @@ export const defaultQuests: Array<Quest> = [
     rewards:         [
       { amount: 2000, type: "gold" },
       { amount: 5, type: "essence" },
+      { amount: 10, type: "crystals" },
       { targetId: "peasant_1", type: "upgrade" },
       { targetId: "apprentice_1", type: "upgrade" },
       { targetId: "apprentice", type: "adventurer" },

apps/api/src/data/upgrades.ts

@@ -496,6 +496,43 @@ export const defaultUpgrades: Array<Upgrade> = [
     unlocked:     false,
   },
   // ── Purchasable essence/crystal sink upgrades ─────────────────────────────
+  {
+    costCrystals: 3000,
+    costEssence:  0,
+    costGold:     0,
+    description:  "Crystalline energy pulses through your guild's operations. All income +50%.",
+    id:           "crystal_pulse",
+    multiplier:   1.5,
+    name:         "Crystal Pulse",
+    purchased:    false,
+    target:       "global",
+    unlocked:     true,
+  },
+  {
+    costCrystals: 20_000,
+    costEssence:  0,
+    costGold:     0,
+    description:
+      "Crystal resonance surges into every process your guild undertakes. All income doubled.",
+    id:         "crystal_surge",
+    multiplier: 2,
+    name:       "Crystal Surge",
+    purchased:  false,
+    target:     "global",
+    unlocked:   true,
+  },
+  {
+    costCrystals: 150_000,
+    costEssence:  0,
+    costGold:     0,
+    description:  "Your guild's operations are saturated with crystalline power. All income x3.",
+    id:           "crystal_tempest",
+    multiplier:   3,
+    name:         "Crystal Tempest",
+    purchased:    false,
+    target:       "global",
+    unlocked:     true,
+  },
   {
     costCrystals: 0,
     costEssence:  5_000_000,