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/eventsource-parser/dist/stream.js

@@ -0,0 +1,29 @@
+import { createParser } from "./index.js";
+import { ParseError } from "./index.js";
+class EventSourceParserStream extends TransformStream {
+  constructor({ onError, onRetry, onComment } = {}) {
+    let parser;
+    super({
+      start(controller) {
+        parser = createParser({
+          onEvent: (event) => {
+            controller.enqueue(event);
+          },
+          onError(error) {
+            onError === "terminate" ? controller.error(error) : typeof onError == "function" && onError(error);
+          },
+          onRetry,
+          onComment
+        });
+      },
+      transform(chunk) {
+        parser.feed(chunk);
+      }
+    });
+  }
+}
+export {
+  EventSourceParserStream,
+  ParseError
+};
+//# sourceMappingURL=stream.js.map