add all keyboard langs to backstage + fix test

Overlord-Server/src/server/ws-console-rd-backstage.test.ts

@@ -418,6 +418,34 @@ describe("remote desktop viewer control", () => {
 });
 
 describe("backstage viewer control", () => {
+  test("forwards browser-resolved Unicode text with backstage key presses", () => {
+    const clientId = `backstage-unicode-${Date.now().toString(36)}`;
+    const { agentWs } = createClient(clientId);
+    const viewer = createMockWs({ role: "backstage_viewer", clientId });
+
+    handlebackstageViewerOpen(viewer as any);
+    backstageStreamingState.set(clientId, {
+      isStreaming: true,
+      virtualMode: false,
+      display: 0,
+      quality: 90,
+      codec: "",
+      maxFps: 120,
+      lastFps: 0,
+    });
+
+    handlebackstageViewerMessage(viewer as any, JSON.stringify({
+      type: "backstage_key_down",
+      key: "ж",
+      code: "KeyS",
+      text: "ж",
+    }));
+
+    const command = agentCommands(agentWs)
+      .find((msg) => msg.commandType === "backstage_key_down");
+    expect(command?.payload).toEqual({ key: "ж", code: "KeyS", text: "ж" });
+  });
+
   test("forwards backstage_stop even when server stream state is stale", () => {
     const clientId = `backstage-stale-stop-${Date.now().toString(36)}`;
     const { agentWs } = createClient(clientId);

Overlord-Server/src/server/ws-console-rd-backstage.ts

@@ -1392,7 +1392,11 @@ export function handlebackstageViewerMessage(ws: ServerWebSocket<SocketData>, ra
       if (state.isStreaming) sendbackstageCommand(target, "backstage_mouse_wheel", { delta: Number(payload.delta) || 0, x: Number(payload.x) || 0, y: Number(payload.y) || 0 });
       break;
     case "backstage_key_down":
-      if (state.isStreaming) sendbackstageCommand(target, "backstage_key_down", { key: payload.key || "", code: payload.code || "" });
+      if (state.isStreaming) sendbackstageCommand(target, "backstage_key_down", {
+        key: String(payload.key || ""),
+        code: String(payload.code || ""),
+        text: String(payload.text || ""),
+      });
       break;
     case "backstage_key_up":
       if (state.isStreaming) sendbackstageCommand(target, "backstage_key_up", { key: payload.key || "", code: payload.code || "" });