FRITZ'S RPG: BLACK CROWN 0.11.7 - FORGE STAIR FIX TEST

1. Remove the older Fritz's RPG JAR and install only 0.11.7.
2. Start Minecraft and obtain the building set with:
   /function fritzsrpg:testing/give_forge_building_blocks
3. Test all four stair variants while facing north, east, south and west.
4. Confirm each stair visually points in the same direction as its collision shape and no longer appears rotated 90 degrees left.
5. Place stairs directly beside full Ashen Forge blocks and inspect every side.
6. Confirm there are no transparent gaps caused by the previous visual/collision mismatch.
7. Test straight rows, inner corners, outer corners and upside-down stairs.
