fix: replace fork import file extension in cjs

Author: budde377

.changeset/shy-terms-rule.md

@@ -0,0 +1,5 @@
+---
+'@livekit/agents': patch
+---
+
+Fork files with cjs extension when running cjs file

tsup.config.ts

@@ -24,17 +24,24 @@ const defaultOptions: Options = {
       // require('../path') → require('../path.cjs') in `.cjs` files
       // from './path' → from './path.cjs' in `.cjs` files
       // from '../path' → from '../path.cjs' in `.cjs` files
+      // (0, import_node_child_process.fork)(new URL("./path.js" → (0, import_node_child_process.fork)(new URL("./path.cjs" in `.cjs` files
       name: 'fix-cjs-imports',
       renderChunk(code) {
         if (this.format === 'cjs') {
           const regexCjs = /require\((?<quote>['"])(?<import>\.[^'"]+)\.js['"]\)/g;
           const regexDynamic = /import\((?<quote>['"])(?<import>\.[^'"]+)\.js['"]\)/g;
           const regexEsm = /from(?<space>[\s]*)(?<quote>['"])(?<import>\.[^'"]+)\.js['"]/g;
+          const regexForkCompiled =
+            /\(0, import_node_child_process\.fork\)\(new URL\((?<quote>['"])(?<import>\.\/[^'"]+)\.js['"]/g;
           return {
             code: code
               .replace(regexCjs, 'require($<quote>$<import>.cjs$<quote>)')
               .replace(regexDynamic, 'import($<quote>$<import>.cjs$<quote>)')
-              .replace(regexEsm, 'from$<space>$<quote>$<import>.cjs$<quote>'),
+              .replace(regexEsm, 'from$<space>$<quote>$<import>.cjs$<quote>')
+              .replace(
+                regexForkCompiled,
+                '(0, import_node_child_process.fork)(new URL($<quote>$<import>.cjs$<quote>',
+              ),
           };
         }
       },