Migrate to TypeScript 6.0

See https://devblogs.microsoft.com/typescript/announcing-typescript-6-0/

See https://gist.github.com/privatenumber/3d2e80da28f84ee30b77d53e1693378f

Author: generalmimon

package-lock.json

@@ -43,6 +43,6 @@
     "@types/node": "^24.12.0",
     "rollup": "^4.59.0",
     "tslib": "^2.8.1",
-    "typescript": "^5.9.3"
+    "typescript": "^6.0.3"
   }
 }

package.json

@@ -26,9 +26,9 @@
     // "moduleDetection": "auto",                        /* Control what method is used to detect module-format JS files. */
 
     /* Modules */
-    "module": "es2015",                                  /* Specify what module code is generated. */
-    // "rootDir": "./",                                  /* Specify the root folder within your source files. */
-    // "moduleResolution": "node10",                     /* Specify how TypeScript looks up a file from a given module specifier. */
+    "module": "preserve",                                /* Specify what module code is generated. */
+    "rootDir": "./",                                     /* Specify the root folder within your source files. */
+    "moduleResolution": "bundler",                       /* Specify how TypeScript looks up a file from a given module specifier. */
     // "baseUrl": "./",                                  /* Specify the base directory to resolve non-relative module names. */
     // "paths": {},                                      /* Specify a set of entries that re-map imports to additional lookup locations. */
     // "rootDirs": [],                                   /* Allow multiple folders to be treated as one when resolving modules. */