feat(gateway): wire the wallet.order edge call for the direct rail

Add the WalletOrderRequest / WalletOrderResponse FlatBuffers messages and the
wallet.order Connect op: the gateway decodes the order request, forwards it to
the backend POST /wallet/order and returns the created order id plus the
provider launch URL the client opens. Regenerate the committed Go and TS
FlatBuffers code.

ui/src/gen/fbs/scrabblefb.ts

@@ -86,6 +86,8 @@ export { UpdateProfileRequest } from './scrabblefb/update-profile-request.js';
 export { VKLoginRequest } from './scrabblefb/vklogin-request.js';
 export { Wallet } from './scrabblefb/wallet.js';
 export { WalletBuyRequest } from './scrabblefb/wallet-buy-request.js';
+export { WalletOrderRequest } from './scrabblefb/wallet-order-request.js';
+export { WalletOrderResponse } from './scrabblefb/wallet-order-response.js';
 export { WalletSegment } from './scrabblefb/wallet-segment.js';
 export { WordCheckResult } from './scrabblefb/word-check-result.js';
 export { YourTurnEvent } from './scrabblefb/your-turn-event.js';

ui/src/gen/fbs/scrabblefb/wallet-order-request.ts

@@ -0,0 +1,48 @@
+// automatically generated by the FlatBuffers compiler, do not modify
+
+import * as flatbuffers from 'flatbuffers';
+
+export class WalletOrderRequest {
+  bb: flatbuffers.ByteBuffer|null = null;
+  bb_pos = 0;
+  __init(i:number, bb:flatbuffers.ByteBuffer):WalletOrderRequest {
+  this.bb_pos = i;
+  this.bb = bb;
+  return this;
+}
+
+static getRootAsWalletOrderRequest(bb:flatbuffers.ByteBuffer, obj?:WalletOrderRequest):WalletOrderRequest {
+  return (obj || new WalletOrderRequest()).__init(bb.readInt32(bb.position()) + bb.position(), bb);
+}
+
+static getSizePrefixedRootAsWalletOrderRequest(bb:flatbuffers.ByteBuffer, obj?:WalletOrderRequest):WalletOrderRequest {
+  bb.setPosition(bb.position() + flatbuffers.SIZE_PREFIX_LENGTH);
+  return (obj || new WalletOrderRequest()).__init(bb.readInt32(bb.position()) + bb.position(), bb);
+}
+
+productId():string|null
+productId(optionalEncoding:flatbuffers.Encoding):string|Uint8Array|null
+productId(optionalEncoding?:any):string|Uint8Array|null {
+  const offset = this.bb!.__offset(this.bb_pos, 4);
+  return offset ? this.bb!.__string(this.bb_pos + offset, optionalEncoding) : null;
+}
+
+static startWalletOrderRequest(builder:flatbuffers.Builder) {
+  builder.startObject(1);
+}
+
+static addProductId(builder:flatbuffers.Builder, productIdOffset:flatbuffers.Offset) {
+  builder.addFieldOffset(0, productIdOffset, 0);
+}
+
+static endWalletOrderRequest(builder:flatbuffers.Builder):flatbuffers.Offset {
+  const offset = builder.endObject();
+  return offset;
+}
+
+static createWalletOrderRequest(builder:flatbuffers.Builder, productIdOffset:flatbuffers.Offset):flatbuffers.Offset {
+  WalletOrderRequest.startWalletOrderRequest(builder);
+  WalletOrderRequest.addProductId(builder, productIdOffset);
+  return WalletOrderRequest.endWalletOrderRequest(builder);
+}
+}

ui/src/gen/fbs/scrabblefb/wallet-order-response.ts

@@ -0,0 +1,60 @@
+// automatically generated by the FlatBuffers compiler, do not modify
+
+import * as flatbuffers from 'flatbuffers';
+
+export class WalletOrderResponse {
+  bb: flatbuffers.ByteBuffer|null = null;
+  bb_pos = 0;
+  __init(i:number, bb:flatbuffers.ByteBuffer):WalletOrderResponse {
+  this.bb_pos = i;
+  this.bb = bb;
+  return this;
+}
+
+static getRootAsWalletOrderResponse(bb:flatbuffers.ByteBuffer, obj?:WalletOrderResponse):WalletOrderResponse {
+  return (obj || new WalletOrderResponse()).__init(bb.readInt32(bb.position()) + bb.position(), bb);
+}
+
+static getSizePrefixedRootAsWalletOrderResponse(bb:flatbuffers.ByteBuffer, obj?:WalletOrderResponse):WalletOrderResponse {
+  bb.setPosition(bb.position() + flatbuffers.SIZE_PREFIX_LENGTH);
+  return (obj || new WalletOrderResponse()).__init(bb.readInt32(bb.position()) + bb.position(), bb);
+}
+
+orderId():string|null
+orderId(optionalEncoding:flatbuffers.Encoding):string|Uint8Array|null
+orderId(optionalEncoding?:any):string|Uint8Array|null {
+  const offset = this.bb!.__offset(this.bb_pos, 4);
+  return offset ? this.bb!.__string(this.bb_pos + offset, optionalEncoding) : null;
+}
+
+redirectUrl():string|null
+redirectUrl(optionalEncoding:flatbuffers.Encoding):string|Uint8Array|null
+redirectUrl(optionalEncoding?:any):string|Uint8Array|null {
+  const offset = this.bb!.__offset(this.bb_pos, 6);
+  return offset ? this.bb!.__string(this.bb_pos + offset, optionalEncoding) : null;
+}
+
+static startWalletOrderResponse(builder:flatbuffers.Builder) {
+  builder.startObject(2);
+}
+
+static addOrderId(builder:flatbuffers.Builder, orderIdOffset:flatbuffers.Offset) {
+  builder.addFieldOffset(0, orderIdOffset, 0);
+}
+
+static addRedirectUrl(builder:flatbuffers.Builder, redirectUrlOffset:flatbuffers.Offset) {
+  builder.addFieldOffset(1, redirectUrlOffset, 0);
+}
+
+static endWalletOrderResponse(builder:flatbuffers.Builder):flatbuffers.Offset {
+  const offset = builder.endObject();
+  return offset;
+}
+
+static createWalletOrderResponse(builder:flatbuffers.Builder, orderIdOffset:flatbuffers.Offset, redirectUrlOffset:flatbuffers.Offset):flatbuffers.Offset {
+  WalletOrderResponse.startWalletOrderResponse(builder);
+  WalletOrderResponse.addOrderId(builder, orderIdOffset);
+  WalletOrderResponse.addRedirectUrl(builder, redirectUrlOffset);
+  return WalletOrderResponse.endWalletOrderResponse(builder);
+}
+}