ci(release): pre-fetch bootstrap-python so todesktop validates extraResources

[Kosinkadink]

Problem

build-release.yml for tag v0.6.0 failed at the Build with ToDesktop step:

ERROR
todesktop.json invalid.
FILE does not exist (.../bootstrap-python/win-x64)
FILE does not exist (.../bootstrap-python/mac-arm64)
FILE does not exist (.../bootstrap-python/linux-x64)

Failed run.

@todesktop/cli@1.22.0 now eagerly validates the platform-specific paths in todesktop.json platformOverrides.*.extraResources before invoking the beforeBuild hook. Our scripts/todesktop-beforeBuild.cjs is the thing that calls fetch-bootstrap-python.mjs to download the bootstrap-python archive for the active platform — by the time it runs, validation has already failed.

The CLI version is unchanged from the v0.5.0 release that worked a month ago, so this is a behavior change shipped server-side or in a non-version-bumped CLI release.

Fix

Run the existing pnpm run bootstrap:fetch script (which calls scripts/fetch-bootstrap-python.mjs for all 3 platforms) right after the ToDesktop CLI is installed, so the directories exist on disk before todesktop build validates the config.

The script already supports being a no-op for any platform whose directory already exists, and uses GITHUB_TOKEN for authenticated downloads to avoid rate limits.

Follow-up

After this merges, the v0.6.0 build needs to be re-triggered. Options:

• Bump to v0.6.1 via version-bump.yml (cleanest).
• Or manually workflow_dispatch build-release.yml for tag v0.6.0 after force-moving the tag to the new merge commit (avoid: tag mutation is hostile to consumers).

Recommend the bump.

Amp-Thread-ID: https://ampcode.com/threads/T-019e009a-812e-734e-b371-d5eacf9d34c2