Auto-fix CI failures for PR #1375

[github-actions]

Summary

Fixes the Docker Build Test job failure in the PR Build Check workflow (run 30714661886) for PR #1375.

• Adds a markAsUncloneable no-op polyfill on node:worker_threads so undici >= 8 can be imported under Bun during the Docker build stage.
• Imports the polyfill as a side effect in the /v1 and /v1beta proxy route entry points (right after the existing @/lib/polyfills/file import), ahead of any transitive undici import.

Root cause

The failing error is:

TypeError: s.util.markAsUncloneable is not a function

during next build page-data collection for /v1/[...route].

• undici 7.x's lib/web/webidl shipped a safe fallback: webidl.util.markAsUncloneable = markAsUncloneable || (() => {}).
• undici 8.x removed the fallback and destructures directly: const { markAsUncloneable } = require('node:worker_threads').
• node:worker_threads.markAsUncloneable is a Node.js 23+ API that Bun's JSC runtime does not implement, so under Bun the destructured binding is undefined and constructing any undici Web API object throws.
• The Docker build stage runs bun run build on oven/bun:debian, which is why CI hit this while local Node builds did not.

This regression originates from dev's dependency bump in #1376 (undici: ^7 -> ^8.9.0). It is not caused by anything in PR #1375's own code.

Verification

• bun run typecheck (tsgo) — clean
• bun run lint (biome) — clean (2 pre-existing biome.json deprecation infos, unrelated)
• bun run lint:fix — no fixes applied
• bun run build with undici 8.9.0 installed (the exact failing scenario) — exit 0, route table renders /v1/[...route] and /v1beta/[...route] successfully
• git diff --check — clean

The polyfill guard (typeof ... !== "function") ensures the real Node.js markAsUncloneable is used unchanged in production; the no-op only applies where the API is missing (the Bun build stage), matching the previous undici 7.x behavior exactly.

Notes for review — repo-wide regression on dev

The undici ^8.9.0 bump (dev commit 519c605, #1376) breaks the Bun-based Docker build repo-wide: dev's own "PR Build Check" is currently failing on the same error (run 30712055253, "release v0.9.1"). This PR unblocks #1375 in isolation, but the underlying dependency incompatibility should ideally be resolved on dev as well (a separate auto-fix branch, claude-fix-pr-1379-30714202270, applies the same polyfill approach for another affected PR).

This polyfill is a safe, surgical workaround with no behavior change and no dependency-version change, so it will not conflict with dev's undici: ^8.9.0 on merge.

Test plan

• bun run typecheck passes
• bun run lint / lint:fix pass
• bun run build passes with undici 8.9.0 (reproduces and resolves the CI failure)
• PR Build Check workflow passes on this branch

Greptile Summary

The PR adds a guarded node:worker_threads.markAsUncloneable compatibility polyfill and loads it before the proxy routes’ undici dependency graph.

• Adds a no-op fallback only when the native API is unavailable.
• Applies the compatibility setup to both /v1 and /v1beta route entrypoints.
• Preserves native behavior on runtimes that already implement the API.

Confidence Score: 5/5

The PR appears safe to merge, with no concrete changed-code failure identified.

The guarded shim leaves native implementations unchanged, and the affected Node.js route entrypoints evaluate it before their undici-dependent proxy modules.

Important Files Changed

Filename	Overview
src/lib/polyfills/worker-threads.ts	Adds a guarded import-time compatibility shim for runtimes lacking worker_threads.markAsUncloneable.
src/app/v1/[...route]/route.ts	Loads the worker-threads shim before the /v1 proxy route’s undici-dependent imports.
src/app/v1beta/[...route]/route.ts	Loads the same shim before the /v1beta proxy route’s undici-dependent imports.

_{Reviews (1): Last reviewed commit: "fix(build): polyfill markAsUncloneable f..." | Re-trigger Greptile}

Context used:

• Knowledge Base — Proxy request pipeline

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[chatgpt-codex-connector]

Load the undici polyfill before legacy action imports

When the Bun/undici>=8 workaround is needed, limiting this side-effect import to /v1//v1beta still leaves the legacy actions route unpatched: src/app/api/actions/[...route]/route.ts imports @/actions/providers at module load, which pulls @/lib/proxy-agent and imports undici before markAsUncloneable is installed. The Docker build runs bun run build, so after /v1 is fixed it can still hit the same webidl.util.markAsUncloneable crash while evaluating /api/actions; move/import the polyfill from a shared server bootstrap or add it ahead of those action imports too.

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