Mark prerelease versions as prerelease in GitHub Releases

[kjiang-ac]

Summary

Mark prerelease versions correctly in GitHub Releases so that Intent's binary download flow pulls stable releases instead of prereleases.

Problem

The bun-compile workflow creates GitHub Releases for prerelease versions (e.g., v0.19.0-prerelease.10) without setting the prerelease flag. GitHub's /releases/latest endpoint treats them as the latest release, which means Intent's binary download URL (/releases/latest/download/auggie-darwin-arm64) pulls a prerelease binary instead of the current stable release.

Changes

• Detect if the version string contains "prerelease" and pass --prerelease to gh release create
• This ensures /releases/latest correctly resolves to the most recent stable release

Context

Intent is adding a 1-click auggie install flow that downloads pre-built binaries from GitHub Releases when Node.js is unavailable. It relies on /releases/latest/download to always point to a stable release. See Intent PR #165.

Test

Verified that prereleases get prerelease tag

• test run: https://github.com/augmentcode/auggie/actions/runs/22980283044
• prerelease tag shown here: https://github.com/augmentcode/auggie/releases/tag/v0.19.0-prerelease.9

[github-actions]

The logic for detecting prerelease versions and adding the --prerelease flag looks correct. One suggestion below to reduce command duplication and lower future maintenance risk.

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[kjiang-ac]

auggie review

[augment-app-staging]

🤖 Augment PR Summary

Summary: Updates the bun-compile GitHub Actions workflow to mark prerelease version tags as GitHub prereleases.

Why: Keeps /releases/latest pointing at the most recent stable release so downstream binary download flows don�t pull prerelease builds.

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[augment-app-staging]

Review completed. No suggestions at this time.

Items Reviewed

• ✅ Check review guidelines
• ✅ Verify prerelease detection in release workflow
• ✅ Review .github/workflows/bun-compile.yml

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[augment-app-staging]

🤖 PR Triage: Low-risk — Auto-approvable

Summary: Adds --prerelease flag to gh release create in the bun-compile CI workflow when the version string contains "prerelease".

Changes:

• .github/workflows/bun-compile.yml — 5 lines added: detect prerelease version string and conditionally pass --prerelease flag

Risk assessment:

• ✅ Single file changed, CI workflow only
• ✅ No application code changes
• ✅ Simple string check (*prerelease*) with clear intent
• ✅ Only affects GitHub Release metadata (prerelease flag), not build artifacts
• ✅ Fixes a real issue where /releases/latest incorrectly resolves to prerelease builds

This PR is a minimal CI fix and can be safely auto-approved.

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[augment-app-staging]

Review completed. No suggestions at this time.

Items Reviewed

• ✅ Check review guidelines
• ✅ Verify prerelease detection & release creation behavior
• ✅ Review .github/workflows/bun-compile.yml

Comment augment review to trigger a new review at any time.