fix(ci): Retry binary downloads on transient HTTP errors

[charlesvien]

Problem

Release publish fails when GitHub's release CDN returns a transient HTTP 504 while postinstall downloads the codex-acp binary, since the download has no retry and one blip aborts the whole install.

Changes

1. Add bounded exponential-backoff retry to binary downloads (5 attempts)
2. Retry transient failures: 5xx, 429, 408/425, and network-level errors
3. Fail fast on non-retriable statuses like 404 so missing assets don't waste retries
4. Cap backoff delay (1s to 8s, ~15s max added latency)

How did you test this?

I did not

Automatic notifications

• Publish to changelog?
• Alert Sales and Marketing teams?

[charlesvien]

• feat(code): Enrich renderer crash events for Error Tracking #2514
• feat(agent): Sync Claude ACP adapter with upstream v0.42.0 #2513
• chore(code): Upgrade Electron 42, Vite 8, React 19.2 and deps #2512
• fix(ci): Retry binary downloads on transient HTTP errors #2509 👈 (View in Graphite)
• main

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[greptile-apps]

T-Rex Logs

What T-Rex did

• Generated targeted retry tests for downloadFile in apps/code/scripts/download-binaries.mjs.
• Verified retriable HTTP statuses 408, 425, 429, 500, 502, 503, and 504 retry before either succeeding or exhausting attempts.
• Verified non-retriable statuses such as 401, 403, and 404 fail immediately.
• Verified network errors and stream errors retry, including a partial-write case where the next successful write replaces the failed archive content.
• Verified the backoff sequence is 1000ms, 2000ms, 4000ms, and 8000ms across the retry attempts.
• Confirmed pipeline(WebReadableStream, createWriteStream) works in the runtime compatibility check.

Artifacts

Generated retry test harness

• This harness enables running and inspecting the retry scenarios for downloadFile.

Generated retry test output

• A log of the retry test run showing outcomes and timings for each scenario.

_{Ran code and verified through T-Rex}

_{Reviews (1): Last reviewed commit: "Retry binary downloads on transient HTTP..." | Re-trigger Greptile}

[k11kirky]

lgtm

[github-actions]

React Doctor found no issues in the changed files. 🎉

_{Reviewed by React Doctor for commit 89dfb6d.}