fix: keep only source-map extracted node_modules, exclude pnpm artifacts

Restore node_modules to exact state from cli.js.map extraction:
- Move .ignored/ and .ignored_* files back to original package paths
- Remove pnpm symlinks (replaced by real source-map directories)
- Update .gitignore: only exclude /dist/, .pnpm/, .bin/, .ignored* dirs
- All package dist/ folders are now preserved as part of source-map files

After clone, run `pnpm install` to get pnpm-managed symlinks for building.
The committed node_modules contains the original TypeScript/JS source files
as bundled in cli.js.

claude-code-source/node_modules/@azure/msal-node/dist/utils/TimeUtils.mjs

@@ -0,0 +1,23 @@
+/*! @azure/msal-node v3.8.1 2025-10-29 */
+'use strict';
+/*
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License.
+ */
+/**
+ * @internal
+ * Checks if a given date string is in ISO 8601 format.
+ *
+ * @param dateString - The date string to be checked.
+ * @returns boolean - Returns true if the date string is in ISO 8601 format, otherwise false.
+ */
+function isIso8601(dateString) {
+    if (typeof dateString !== "string") {
+        return false;
+    }
+    const date = new Date(dateString);
+    return !isNaN(date.getTime()) && date.toISOString() === dateString;
+}
+
+export { isIso8601 };
+//# sourceMappingURL=TimeUtils.mjs.map