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-body-length-browser/dist-cjs/index.js

@@ -0,0 +1,30 @@
+'use strict';
+
+const TEXT_ENCODER = typeof TextEncoder == "function" ? new TextEncoder() : null;
+const calculateBodyLength = (body) => {
+    if (typeof body === "string") {
+        if (TEXT_ENCODER) {
+            return TEXT_ENCODER.encode(body).byteLength;
+        }
+        let len = body.length;
+        for (let i = len - 1; i >= 0; i--) {
+            const code = body.charCodeAt(i);
+            if (code > 0x7f && code <= 0x7ff)
+                len++;
+            else if (code > 0x7ff && code <= 0xffff)
+                len += 2;
+            if (code >= 0xdc00 && code <= 0xdfff)
+                i--;
+        }
+        return len;
+    }
+    else if (typeof body.byteLength === "number") {
+        return body.byteLength;
+    }
+    else if (typeof body.size === "number") {
+        return body.size;
+    }
+    throw new Error(`Body Length computation failed for ${body}`);
+};
+
+exports.calculateBodyLength = calculateBodyLength;