feat(content): victory & flee endings; front-door flee switch

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Semesterprojekt/docs/enhancement-ideas.md

@@ -86,8 +86,13 @@ Farb-Rollen: Items / NPCs / Exits / Heading / Gefahr.
 > ✅ #3.2 umgesetzt (Branch `feature/quests`): condition-driven Quests
 > (Quest/QuestStage), QuestEngine mit Auto-Advance + Ansagen, START_QUEST-Effekt,
 > Konsolen-Befehl `quests` und GUI-Quest-Box unter der Karte. Demo-Quest
-> `restore_power`. Offen: #3.3 Win-Condition/Enden sowie Licht/Dunkelheit &
+> `restore_power`.
-> Item-Kombination.
+>
+> ✅ #3.3 umgesetzt (Branch `feature/endings`): priorisierte, condition-driven
+> Enden (`endings.yaml`) + End-Screen mit Summary (Züge, Quests X/Y, Rang).
+> Demo: Sieg-Ende (`manor_secured`) und Flucht-Ende (Front Door → `fled`).
+> **Damit ist das Quest-System (#3) komplett.** Offen: Licht/Dunkelheit &
+> Item-Kombination sowie #4 Content-Ausbau.
 
 
 - Aktuelles NPC-System: Begrüßung + Geschenk-Reaktion (Item → Item).

Semesterprojekt/src/main/resources/world/endings.yaml

@@ -0,0 +1,14 @@
+- id: victory
+  title: "The Manor Reclaimed"
+  victory: true
+  when: [{ flag: manor_secured }]
+  text: |
+    The lights hold steady and the whispers fade to nothing. Whatever held
+    this place has loosened its grip. The manor is yours now.
+- id: fled
+  title: "Into the Night"
+  victory: false
+  when: [{ flag: fled }]
+  text: |
+    You wrench the front door open and bolt into the dark. Safe — but the
+    manor keeps its secrets, and they will keep you awake for years.

Semesterprojekt/src/main/resources/world/items.yaml

@@ -34,3 +34,15 @@
     You pull the lever back; the manor falls dark again.
   effects:
     - { setFlag: power_on }
+
+- type: switchable
+  id: front_door
+  name: Front Door
+  description: The heavy front door. It would let you leave the manor for good.
+  initialState: false
+  onText: |
+    You haul the front door open and step out into the cold night.
+  offText: |
+    You ease the door shut again.
+  effects:
+    - { setFlag: fled }

Semesterprojekt/src/main/resources/world/rooms.yaml

@@ -7,7 +7,7 @@
     north: hallway
     east: cellar
     south: dungeon
-  items: [letter, lamp]
+  items: [letter, lamp, front_door]
   npcs: [old_man]
   exitLocks:
     - direction: east