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-sdk/credential-providers/dist-cjs/fromContainerMetadata.js

@@ -0,0 +1,9 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.fromContainerMetadata = void 0;
+const credential_provider_imds_1 = require("@smithy/credential-provider-imds");
+const fromContainerMetadata = (init) => {
+    init?.logger?.debug("@smithy/credential-provider-imds", "fromContainerMetadata");
+    return (0, credential_provider_imds_1.fromContainerMetadata)(init);
+};
+exports.fromContainerMetadata = fromContainerMetadata;