refactor: separate story locales (public/) from UI locales (src/), async fetch for story messages

src/locales/en.json

@@ -19,61 +19,5 @@
     "speed": "Speed",
     "noAutoSave": "No auto save yet",
     "autoSaveHint": "Game auto-saves to slot 0 at each scene change"
-  },
-  "scene": {
-    "intro": {
-      "choice": {
-        "left_door": "Walk toward the glowing door on the left",
-        "right_door": "Walk toward the ordinary door on the right",
-        "search": "Search the room carefully",
-        "stay": "Stay where you are, do nothing"
-      }
-    },
-    "left_door": {
-      "choice": {
-        "handshake": "Shake hands with the stranger",
-        "reject": "Refuse to shake, stay alert"
-      }
-    },
-    "right_door": {
-      "choice": {
-        "continue": "Keep moving forward",
-        "back": "Turn back"
-      }
-    },
-    "trust_ending": {
-      "choice": {
-        "journey": "Embark on a journey of trust (requires trust >= 80)",
-        "leave": "Leave this place"
-      }
-    },
-    "investigation_site": {
-      "choice": {
-        "leave": "Leave the room"
-      }
-    },
-    "desk_detail": {
-      "choice": {
-        "return": "Return to the crime scene",
-        "leave": "Leave"
-      }
-    },
-    "stay": {
-      "choice": {
-        "stand": "Stand up and leave"
-      }
-    },
-    "qte_success": {
-      "choice": {
-        "continue": "Keep moving forward",
-        "back": "Turn back"
-      }
-    },
-    "qte_fail": {
-      "choice": {
-        "continue": "Keep moving forward",
-        "back": "Turn back"
-      }
-    }
   }
-}
+}