feat(content): add upper floor slice

src/world/rooms/bedroom.md

@@ -0,0 +1,24 @@
+---
+id: bedroom
+title: "[ Bedroom ]"
+exitN: null
+exitS: null
+exitE: "[[nursery]]"
+exitW: null
+exitU: "[[attic]]"
+exitD: "[[stair-up]]"
+items: []
+encounter: null
+safe: true
+---
+
+## first-visit
+The bedroom has been prepared for another sleeper. The counterpane is turned down on one side. The pillow holds a shallow dent.
+
+A nursery opens east. A narrower stair climbs into the ceiling.
+
+## revisit
+The bedroom keeps the shape of its absent sleeper.
+
+## examined
+The wardrobe stands open a hand's width. A dress hangs inside, dark at the hem. On the bedside table, a dry glass has left a ring in the dust.