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/undici/lib/web/eventsource/util.js

@@ -0,0 +1,37 @@
+'use strict'
+
+/**
+ * Checks if the given value is a valid LastEventId.
+ * @param {string} value
+ * @returns {boolean}
+ */
+function isValidLastEventId (value) {
+  // LastEventId should not contain U+0000 NULL
+  return value.indexOf('\u0000') === -1
+}
+
+/**
+ * Checks if the given value is a base 10 digit.
+ * @param {string} value
+ * @returns {boolean}
+ */
+function isASCIINumber (value) {
+  if (value.length === 0) return false
+  for (let i = 0; i < value.length; i++) {
+    if (value.charCodeAt(i) < 0x30 || value.charCodeAt(i) > 0x39) return false
+  }
+  return true
+}
+
+// https://github.com/nodejs/undici/issues/2664
+function delay (ms) {
+  return new Promise((resolve) => {
+    setTimeout(resolve, ms).unref()
+  })
+}
+
+module.exports = {
+  isValidLastEventId,
+  isASCIINumber,
+  delay
+}