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/execa/lib/verbose.js

@@ -0,0 +1,19 @@
+import {debuglog} from 'node:util';
+import process from 'node:process';
+
+export const verboseDefault = debuglog('execa').enabled;
+
+const padField = (field, padding) => String(field).padStart(padding, '0');
+
+const getTimestamp = () => {
+	const date = new Date();
+	return `${padField(date.getHours(), 2)}:${padField(date.getMinutes(), 2)}:${padField(date.getSeconds(), 2)}.${padField(date.getMilliseconds(), 3)}`;
+};
+
+export const logCommand = (escapedCommand, {verbose}) => {
+	if (!verbose) {
+		return;
+	}
+
+	process.stderr.write(`[${getTimestamp()}] ${escapedCommand}\n`);
+};