fix: #328 fabricator golem-2 interval 250→500 + golem-1 desc

- Fix Fabricator golem-2 capped perk interval from 250 to 500 (spec match)
- Update golem-1 description to 'Unlock golem summoning' (spec match)

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

@@ -9,6 +9,7 @@ import type { ComputedEffects } from '../../effects/upgrade-effects.types';
 import type { EnemyState } from '../../types';
 import type { CombatStore } from '../combat-state.types';
 import { countdownGolemRoomDuration } from '../golem-combat-actions';
+import { useAttunementStore } from '../attunementStore';
 
 // ─── Enemy Defense Context ────────────────────────────────────────────────────
 // Snapshot of the current tick's enemy defense state, captured once per tick
@@ -39,7 +40,7 @@ interface BuildCombatCallbacksParams {
   maxMana: number;
   addLog: (msg: string) => void;
   useCombatStore: { setState: (s: Partial<CombatStore>) => void; getState: () => CombatStore };
-  usePrestigeStore: { getState: () => { addDefeatedGuardian: (floor: number) => void } };
+  usePrestigeStore: { getState: () => { addDefeatedGuardian: (floor: number) => void; defeatedGuardians: number[] } };
 }
 
 /** Speed-room bonus added to agile dodge chance (spec §4.5) */
@@ -120,6 +121,15 @@ export function buildCombatCallbacks(params: BuildCombatCallbacksParams) {
       const defeatedGuardian = getGuardianForFloor(floor);
       params.addLog((defeatedGuardian?.name || 'Unknown') + ' defeated! Visit the Grimoire to sign a pact.');
       usePrestigeStore.getState().addDefeatedGuardian(floor);
+
+      // Auto-unlock Invoker when the first guardian (floor 10) is defeated
+      if (floor === 10) {
+        const prestigeState = usePrestigeStore.getState();
+        const unlocked = useAttunementStore.getState().unlockAttunement('invoker', prestigeState.defeatedGuardians);
+        if (unlocked) {
+          params.addLog('💜 The path of the Invoker is now available!');
+        }
+      }
     } else if (floor % 5 === 0) {
       params.addLog('Floor ' + floor + ' cleared!');
     }