The createRequire approach from #10955 did not prevent the Bun ESM
splitter from generating invalid output. Bun 1.3.14 with
`conditions: ["browser"]` resolves @morphllm/morphsdk via the "import"
condition (pre-split ESM barrel) even inside createRequire() calls,
pulling in 52 chunk-*.js files that cause:
SyntaxError: Exported binding 'G9' needs to refer to a top-level declared variable.
Fix: add a morphsdkCjsPlugin in script/build.ts using Bun's onResolve
API to redirect the module specifier to the absolute path of client.cjs
before the ESM splitter is invoked. client.cjs is a self-contained
~2300-line CJS bundle with no chunk-*.js imports.
morphsdk.ts is simplified to a plain re-export — the CJS redirection
happens at build time, no source-level workaround needed.
Catriel Müller
bd1e3e4a14