Upgrade FlatBuffers to v25.9.23. Use flatc --ts and then transpile to JS

Author: afarber

eslint.config.js

@@ -2,6 +2,9 @@ import { Linter } from 'eslint';
 
 /** @type {Linter.Config} */
 const config = [
+  {
+    ignores: ['node_modules/', 'build/', 'dist/', 'coverage/', 'features/support/osrm/'],
+  },
   {
     files: ["**/*.js"],
     languageOptions: {
@@ -25,7 +28,6 @@ const config = [
       'prefer-template': 'error',
       'prefer-arrow-callback': 'error',
     },
-    ignores: ['node_modules/', 'build/', 'dist/', 'coverage/', 'features/support/fbresult_generated.js'],
   },
 ];
 

features/step_definitions/distance_matrix.js

@@ -2,7 +2,7 @@
 import util from 'util';
 
 import flatbuffers from 'flatbuffers';
-import { osrm } from '../support/fbresult_generated.js';
+import * as osrm from '../support/osrm/engine/api/fbresult.js';
 const FBResult = osrm.engine.api.fbresult.FBResult;
 import { When } from '@cucumber/cucumber';
 

features/step_definitions/nearest.js

@@ -2,7 +2,7 @@
 import util from 'util';
 
 import flatbuffers from 'flatbuffers';
-import { osrm } from '../support/fbresult_generated.js';
+import * as osrm from '../support/osrm/engine/api/fbresult.js';
 const FBResult = osrm.engine.api.fbresult.FBResult;
 import { When } from '@cucumber/cucumber';