fix: implement fabricator attunement unlock condition (floor 20 guardian)

src/lib/game/__tests__/bug-354-unlock-attunement.test.ts

@@ -50,8 +50,17 @@ describe('Issue #354 — unlockAttunement ReferenceError', () => {
     expect(state.attunements['invoker']?.level).toBe(1);
   });
 
-  it('should return false for fabricator (gating not implemented)', () => {
-    const result = useAttunementStore.getState().unlockAttunement('fabricator', [10, 20, 30]);
+  it('should return false for fabricator when floor 20 guardian not defeated', () => {
+    const result = useAttunementStore.getState().unlockAttunement('fabricator', [10, 30]);
     expect(result).toBe(false);
   });
+
+  it('should unlock fabricator when floor 20 guardian is defeated', () => {
+    const result = useAttunementStore.getState().unlockAttunement('fabricator', [10, 20, 30]);
+    expect(result).toBe(true);
+
+    const state = useAttunementStore.getState();
+    expect(state.attunements['fabricator']?.active).toBe(true);
+    expect(state.attunements['fabricator']?.level).toBe(1);
+  });
 });

src/lib/game/stores/attunementStore.ts

@@ -88,8 +88,8 @@ export const useAttunementStore = create<AttunementStoreState>()(
           // Invoker requires defeating the first guardian (floor 10)
           if (!defeatedGuardians.includes(10)) return false;
         } else if (attunementId === 'fabricator') {
-          // Fabricator: no specific gating condition implemented
-          return false;
+          // Fabricator requires defeating the second guardian (floor 20)
+          if (!defeatedGuardians.includes(20)) return false;
         } else {
           // Unknown attunement — don't unlock
           return false;

src/lib/game/stores/pipelines/combat-tick.ts

@@ -130,6 +130,15 @@ export function buildCombatCallbacks(params: BuildCombatCallbacksParams) {
           params.addLog('💜 The path of the Invoker is now available!');
         }
       }
+
+      // Auto-unlock Fabricator when the second guardian (floor 20) is defeated
+      if (floor === 20) {
+        const prestigeState = usePrestigeStore.getState();
+        const unlocked = useAttunementStore.getState().unlockAttunement('fabricator', prestigeState.defeatedGuardians);
+        if (unlocked) {
+          params.addLog('⚒️ The path of the Fabricator is now available!');
+        }
+      }
     } else if (floor % 5 === 0) {
       params.addLog('Floor ' + floor + ' cleared!');
     }