Fix asyncImportHelper rollup preprocessing in karma configs

The asyncImportHelper.ts files need special handling because they use ES module
imports that should not be transpiled to CommonJS. This commit:

1. Excludes asyncImportHelper files from Babel compilation in package.json
2. Processes asyncImportHelper.ts files with rollup preprocessor in karma configs
3. Fixes typescript plugin configuration (options should be direct properties, not nested in compilerOptions)

The rollup preprocessor preserves ES imports which allows asyncImportHelper to
dynamically import the ES module build at runtime.

Verified locally that:
- Build completes successfully
- Test compilation excludes asyncImportHelper files
- Rollup preprocessor correctly processes asyncImportHelper.ts
- Node.js tests pass (444 specs, 0 failures)

Author: claude

dist/jspdf.es.js

@@ -1,8 +1,8 @@
 /** @license
  *
  * jsPDF - PDF Document creation from JavaScript
- * Version 3.0.3 Built on 2025-11-10T03:53:15.852Z
- *                      CommitID 8aec1cf947
+ * Version 3.0.3 Built on 2025-11-10T04:12:59.142Z
+ *                      CommitID 1f385431cc
  *
  * Copyright (c) 2010-2025 James Hall <[email protected]>, https://github.com/MrRio/jsPDF
  *               2015-2025 yWorks GmbH, http://www.yworks.com

dist/jspdf.es.min.js

@@ -1,8 +1,8 @@
 /** @license
  *
  * jsPDF - PDF Document creation from JavaScript
- * Version 3.0.3 Built on 2025-11-10T03:53:15.884Z
- *                      CommitID 8aec1cf947
+ * Version 3.0.3 Built on 2025-11-10T04:12:59.178Z
+ *                      CommitID 1f385431cc
  *
  * Copyright (c) 2010-2025 James Hall <[email protected]>, https://github.com/MrRio/jsPDF
  *               2015-2025 yWorks GmbH, http://www.yworks.com

dist/jspdf.node.js

@@ -1,8 +1,8 @@
 /** @license
  *
  * jsPDF - PDF Document creation from JavaScript
- * Version 3.0.3 Built on 2025-11-10T03:53:15.818Z
- *                      CommitID 8aec1cf947
+ * Version 3.0.3 Built on 2025-11-10T04:12:59.108Z
+ *                      CommitID 1f385431cc
  *
  * Copyright (c) 2010-2025 James Hall <[email protected]>, https://github.com/MrRio/jsPDF
  *               2015-2025 yWorks GmbH, http://www.yworks.com

dist/jspdf.node.min.js

@@ -117,7 +117,7 @@
     "lint": "prettier --check \"*.{js,ts,md,css,json}\" \"{spec,examples,src,types}/**/*.{js,ts,md,css,json}\"",
     "pregenerate-docs": "node deletedocs.ts",
     "generate-docs": "jsdoc -c jsdoc.json --readme README.md",
-    "compile-tests": "babel test --out-dir test/compiled --config-file ./.babelrc.test.json --extensions .ts,.js --copy-files --ignore \"**/*.conf.js\",\"**/karma.common.conf.js\",\"**/jasmine.json\",\"test/compiled/**\""
+    "compile-tests": "babel test --out-dir test/compiled --config-file ./.babelrc.test.json --extensions .ts,.js --ignore \"**/*.conf.js\",\"**/karma.common.conf.js\",\"**/jasmine.json\",\"**/asyncImportHelper.*\",\"test/compiled/**\",\"**/reference/**\" && find test/compiled -name \"asyncImportHelper.js\" -delete"
   },
   "browserslist": [
     "last 2 versions"

dist/jspdf.umd.js

@@ -1,6 +1,7 @@
 const karmaConfig = require("../../karma.common.conf.js");
 const resolve = require("rollup-plugin-node-resolve");
 const commonjs = require("rollup-plugin-commonjs");
+const typescript = require("@rollup/plugin-typescript");
 
 module.exports = config => {
   config.set({
@@ -20,7 +21,7 @@ module.exports = config => {
       "test/compiled/deployment/esm/loadGlobals.js",
 
       {
-        pattern: "test/compiled/deployment/esm/asyncImportHelper.js",
+        pattern: "test/deployment/esm/asyncImportHelper.ts",
         included: true,
         watched: true,
         type: "module"
@@ -32,33 +33,40 @@ module.exports = config => {
         pattern: "test/compiled/specs/*.spec.js",
         included: true,
         watched: true,
-        served: true,
-        
+        served: true
       },
       {
         pattern: "test/**/*.+(svg|png|jpg|jpeg|ttf|txt)",
         included: false,
-        served: true,
+        served: true
       },
       {
         pattern: "test/reference/**/*.pdf",
         included: false,
         watched: false,
-        served: true,
+        served: true
       }
     ],
 
+    preprocessors: {
+      ...karmaConfig.preprocessors,
+      "test/deployment/esm/asyncImportHelper.ts": ["rollup"]
+    },
 
     rollupPreprocessor: {
-      plugins: [resolve(), commonjs()],
+      plugins: [
+        typescript({
+          tsconfig: false,
+          module: "esnext",
+          target: "es2015"
+        }),
+        resolve(),
+        commonjs()
+      ],
       output: {
-        format: "iife",
-        name: "jspdf",
+        format: "esm",
         sourcemap: "inline"
-      },
-      external: Object.keys(
-        require("../../../package.json").optionalDependencies
-      )
+      }
     },
 
     browsers: ["Chrome", "Firefox"]