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/@mixmark-io/domino/lib/impl.js

@@ -0,0 +1,27 @@
+"use strict";
+var utils = require('./utils');
+
+exports = module.exports = {
+  CSSStyleDeclaration: require('./CSSStyleDeclaration'),
+  CharacterData: require('./CharacterData'),
+  Comment: require('./Comment'),
+  DOMException: require('./DOMException'),
+  DOMImplementation: require('./DOMImplementation'),
+  DOMTokenList: require('./DOMTokenList'),
+  Document: require('./Document'),
+  DocumentFragment: require('./DocumentFragment'),
+  DocumentType: require('./DocumentType'),
+  Element: require('./Element'),
+  HTMLParser: require('./HTMLParser'),
+  NamedNodeMap: require('./NamedNodeMap'),
+  Node: require('./Node'),
+  NodeList: require('./NodeList'),
+  NodeFilter: require('./NodeFilter'),
+  ProcessingInstruction: require('./ProcessingInstruction'),
+  Text: require('./Text'),
+  Window: require('./Window')
+};
+
+utils.merge(exports, require('./events'));
+utils.merge(exports, require('./htmlelts').elements);
+utils.merge(exports, require('./svg').elements);