feat(dashboard): align contracts and production build

src/web/dashboard-assets.ts

@@ -0,0 +1,34 @@
+import fs from 'node:fs';
+import path from 'node:path';
+
+export interface DashboardAssets {
+  directory: string;
+  indexFile: string;
+  isLegacy: boolean;
+}
+
+export type FileExists = (filePath: string) => boolean;
+
+export function resolveDashboardAssets(
+  workspaceDirectory: string,
+  fileExists: FileExists = fs.existsSync,
+): DashboardAssets {
+  const reactDirectory = path.join(workspaceDirectory, 'apps', 'dashboard', 'dist');
+  const reactIndexFile = path.join(reactDirectory, 'index.html');
+
+  if (fileExists(reactIndexFile)) {
+    return {
+      directory: reactDirectory,
+      indexFile: reactIndexFile,
+      isLegacy: false,
+    };
+  }
+
+  const legacyDirectory = path.join(workspaceDirectory, 'public');
+
+  return {
+    directory: legacyDirectory,
+    indexFile: path.join(legacyDirectory, 'index.html'),
+    isLegacy: true,
+  };
+}