Added player character and step in/out of dialogue in scene 101

NightclubArcadia/Assets/Dialogue/Scenes/Entrance.yarn

@@ -1,7 +1,8 @@
 // The door. Scene files stay thin: they set the stage, detour into character
 // nodes for the actual talking, then branch on the outcome.
 //
-// Reached from SC-101's exit placeholder (TODO(SC101-EXIT)). The game's
+// No longer reached from SC-101: that exit now calls <<enter_environment>>
+// and steps out of dialogue instead of jumping here. The game's
 // DialogueRunner entry is `Start` in Scenes/SC101.yarn.
 
 title: Entrance_Door

NightclubArcadia/Assets/Dialogue/Scenes/SC101.yarn

@@ -40,8 +40,7 @@ Narrator: Someone left a card with your name on it at the registration desk thre
 <<detour SC101_Hook_Journalist>>
 <<detour SC101_Hook_MadeAsset>>
 Narrator: You're drawn toward a seat — toward a waiting conversation you didn't agree to have yet.
-// TODO(SC101-EXIT): temporary. Act I hub node is unnamed — guide §6.1.
-<<jump Entrance_Door>>
+<<enter_environment>>
 ===
 
 title: SC101_Hook_MadeAsset