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/@aws-crypto/util/build/convertToBuffer.js

@@ -0,0 +1,24 @@
+"use strict";
+// Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.convertToBuffer = void 0;
+var util_utf8_browser_1 = require("@aws-sdk/util-utf8-browser");
+// Quick polyfill
+var fromUtf8 = typeof Buffer !== "undefined" && Buffer.from
+    ? function (input) { return Buffer.from(input, "utf8"); }
+    : util_utf8_browser_1.fromUtf8;
+function convertToBuffer(data) {
+    // Already a Uint8, do nothing
+    if (data instanceof Uint8Array)
+        return data;
+    if (typeof data === "string") {
+        return fromUtf8(data);
+    }
+    if (ArrayBuffer.isView(data)) {
+        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength / Uint8Array.BYTES_PER_ELEMENT);
+    }
+    return new Uint8Array(data);
+}
+exports.convertToBuffer = convertToBuffer;
+//# sourceMappingURL=convertToBuffer.js.map