reconstruct and build @anthropic-ai/claude-code source from source map

- Extract 4756 source files from cli.js.map (57MB)
- Set up Bun build system with bun:bundle feature flag shim
- Configure 90+ compile-time feature flags matching production defaults
- Inject MACRO constants (VERSION, BUILD_TIME, etc.)
- Create stubs for private packages (color-diff-napi, modifiers-napi, etc.)
- Install all public dependencies via pnpm
- Patch commander v14 to allow multi-char short flags (-d2e)
- Build output: dist/cli.js (22MB), verified working

claude-code-source/node_modules/@smithy/util-stream/dist-cjs/sdk-stream-mixin.js

@@ -0,0 +1,54 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.sdkStreamMixin = void 0;
+const node_http_handler_1 = require("@smithy/node-http-handler");
+const util_buffer_from_1 = require("@smithy/util-buffer-from");
+const stream_1 = require("stream");
+const sdk_stream_mixin_browser_1 = require("./sdk-stream-mixin.browser");
+const ERR_MSG_STREAM_HAS_BEEN_TRANSFORMED = "The stream has already been transformed.";
+const sdkStreamMixin = (stream) => {
+    if (!(stream instanceof stream_1.Readable)) {
+        try {
+            return (0, sdk_stream_mixin_browser_1.sdkStreamMixin)(stream);
+        }
+        catch (e) {
+            const name = stream?.__proto__?.constructor?.name || stream;
+            throw new Error(`Unexpected stream implementation, expect Stream.Readable instance, got ${name}`);
+        }
+    }
+    let transformed = false;
+    const transformToByteArray = async () => {
+        if (transformed) {
+            throw new Error(ERR_MSG_STREAM_HAS_BEEN_TRANSFORMED);
+        }
+        transformed = true;
+        return await (0, node_http_handler_1.streamCollector)(stream);
+    };
+    return Object.assign(stream, {
+        transformToByteArray,
+        transformToString: async (encoding) => {
+            const buf = await transformToByteArray();
+            if (encoding === undefined || Buffer.isEncoding(encoding)) {
+                return (0, util_buffer_from_1.fromArrayBuffer)(buf.buffer, buf.byteOffset, buf.byteLength).toString(encoding);
+            }
+            else {
+                const decoder = new TextDecoder(encoding);
+                return decoder.decode(buf);
+            }
+        },
+        transformToWebStream: () => {
+            if (transformed) {
+                throw new Error(ERR_MSG_STREAM_HAS_BEEN_TRANSFORMED);
+            }
+            if (stream.readableFlowing !== null) {
+                throw new Error("The stream has been consumed by other callbacks.");
+            }
+            if (typeof stream_1.Readable.toWeb !== "function") {
+                throw new Error("Readable.toWeb() is not supported. Please ensure a polyfill is available.");
+            }
+            transformed = true;
+            return stream_1.Readable.toWeb(stream);
+        },
+    });
+};
+exports.sdkStreamMixin = sdkStreamMixin;