Build an underground multiplayer lo...

Build an underground multiplayer lobby for a StoneBlock 4 Minecraft server. The lobby is fully enclosed by stone on all sides — there is no sky, no surface, and no natural light. This is not a house; it is a carved-out underground communal space. The lobby itself is a large, roughly octagonal or rounded-square open room. The interior should be built primarily out of a mix of polished deepslate, deepslate cobblestone, and cobbled deepslate for the floors and walls, with wood used heavily for structural accents, pillars, beams, ceilings, and decorative elements — use whatever wood types you think fit best aesthetically for an underground fantasy/industrial feel. The lobby has 4 exits/entrances — one on each side (north, south, east, west) — each leading to a separate tunnel corridor that goe