fix: initialize guardian defensive state for uncleared guardian rooms on descent

src/lib/game/stores/combat-descent-actions.ts

@@ -194,6 +194,19 @@ export function onEnterRoomDescend(get: GetFn, set: SetFn): void {
   if (!wasCleared) {
     get().addActivityLog('floor_transition',
       `Floor ${s.currentFloor} Room ${s.currentRoomIndex + 1} was not cleared — enemies present`);
+
+    // Initialize guardian defensive state for uncleared guardian rooms
+    if (s.currentRoom.roomType === 'guardian') {
+      const guardian = getGuardianForFloor(s.currentFloor);
+      if (guardian) {
+        set({
+          guardianShield: guardian.shield ?? 0,
+          guardianShieldMax: guardian.shield ?? 0,
+          guardianBarrier: guardian.barrier ?? 0,
+          guardianBarrierMax: guardian.barrier ?? 0,
+        });
+      }
+    }
     return;
   }