Analyse de partie : tours, chance, taux d'erreur à la manière de gnubg, format durable

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

app/src/engine/wasm-engine.ts

@@ -19,6 +19,7 @@ import type {
     EngineCube,
     EngineMatch,
     EvaluatedMove,
+    Evaluation,
     HalfMovesCheck,
     Level,
     Luck,
@@ -260,6 +261,15 @@ export function createWasmEngine(run: RunCommand): Engine {
             return { value: answer.luck, rating };
         },
 
+        async evaluate(position: PositionId, cube: EngineCube, ply: Ply): Promise<Evaluation> {
+            const args = ["--ply", String(ply), "eval", position, await matchId(cube)];
+            const answer = (await run(args)) as {
+                probabilities: { win: number };
+                cubeful_equity: number;
+            };
+            return { win: answer.probabilities.win, equity: answer.cubeful_equity };
+        },
+
         encodeMatch: matchId,
 
         async decodeMatch(id: MatchId): Promise<MatchDescription> {