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/@smithy/util-middleware/dist-cjs/index.js

@@ -0,0 +1,15 @@
+'use strict';
+
+var types = require('@smithy/types');
+
+const getSmithyContext = (context) => context[types.SMITHY_CONTEXT_KEY] || (context[types.SMITHY_CONTEXT_KEY] = {});
+
+const normalizeProvider = (input) => {
+    if (typeof input === "function")
+        return input;
+    const promisified = Promise.resolve(input);
+    return () => promisified;
+};
+
+exports.getSmithyContext = getSmithyContext;
+exports.normalizeProvider = normalizeProvider;