Add browser-only editor export and 2.5D runtime presentation

engine/schema.ts

@@ -58,6 +58,16 @@ export interface Project {
     ambient: number;
     shadows: boolean;
     renderScale: number;
+    rendering?: { toneMapping?: boolean; exposure?: number; contrast?: number };
+    controls?: Partial<
+      Record<"attack" | "jump" | "dash" | "sprint" | "reset", string[]>
+    >;
+    presentation?: {
+      title?: string;
+      instructions?: string;
+      start?: { title: string; body: string };
+      accent?: string;
+    };
   };
 }
 export interface Command {
@@ -259,6 +269,20 @@ export function validateProject(p: Project) {
         throw Error("Не найден скрипт " + c.script.scriptId);
       if (c.material?.color && !color(c.material.color))
         throw Error("Цвет должен быть #RRGGBB");
+      if (
+        c.material?.alpha !== undefined &&
+        (!Number.isFinite(c.material.alpha) ||
+          c.material.alpha < 0 ||
+          c.material.alpha > 1)
+      )
+        throw Error("Прозрачность материала должна быть от 0 до 1");
+      if (
+        c.camera?.projection === "orthographic" &&
+        (!Number.isFinite(c.camera.orthoWidth) || c.camera.orthoWidth <= 0)
+      )
+        throw Error("Ширина ортографической камеры должна быть положительной");
+      if (c.camera?.lookAt && !vector(c.camera.lookAt))
+        throw Error("Некорректная цель камеры");
       if (m?.size && (!vector(m.size) || m.size.some((v: number) => v <= 0)))
         throw Error("Размеры должны быть положительными");
       if (
@@ -338,7 +362,13 @@ export function remapEntityReferences(
 }
 export const componentDefaults: Record<string, Component> = {
   mesh: { type: "box", size: [1, 1, 1] },
-  material: { color: "#91a697", roughness: 0.8, metallic: 0 },
+  material: {
+    color: "#91a697",
+    roughness: 0.8,
+    metallic: 0,
+    alpha: 1,
+    unlit: false,
+  },
   collider: { shape: "box", size: [1, 1, 1], radius: 0.4 },
   rigidbody: { type: "fixed", mass: 1, restitution: 0.1 },
   character: { gravity: 24, autostep: 0.25 },