Fix update check timeout bug

[zateutsch]

fixes #555

Upped timeout on github request from 250ms to 1s
Writing a placeholder value to update check file to ensure there aren't subsequent failures

[Copilot]

Pull request overview

Fixes a race in the first-run update check cache. The 250 ms foreground wait for the background refresh task often expired before GitHub's API responded, so ~/.winapp/.update-check was never written and every subsequent invocation re-raced. This PR raises the wait to 1000 ms and also writes a placeholder cache file synchronously on first run so the 24-hour gate trips even if the refresh loses the race.

Changes:

• Increase FirstRunRefreshTimeout from 250 ms to 1000 ms.
• Write a placeholder UpdateCheckCache (with LastCheck = UtcNow) synchronously before scheduling the background refresh on first run.

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[github-actions]

⏳ Build in progress — metrics below are from a previous commit and will update when the current build finishes.

Build Metrics Report

Binary Sizes

Artifact	Baseline	Current	Delta
CLI (ARM64)	31.45 MB	31.45 MB	📈 +0.5 KB (+0.00%)
CLI (x64)	31.79 MB	31.79 MB	✅ 0.0 KB (0.00%)
MSIX (ARM64)	13.21 MB	13.21 MB	📉 -0.6 KB (-0.00%)
MSIX (x64)	14.05 MB	14.05 MB	📉 -0.3 KB (-0.00%)
NPM Package	27.50 MB	27.50 MB	📉 -0.2 KB (-0.00%)
NuGet Package	27.59 MB	27.59 MB	📈 +0.7 KB (+0.00%)
VS Code Extension	20.31 MB	20.31 MB	📈 +0.2 KB (+0.00%)

Test Results

✅ 1186 passed, 1 skipped out of 1187 tests in 448.8s (+20.5s vs. baseline)

Test Coverage

❌ 17.2% line coverage, 36.2% branch coverage · ✅ no change vs. baseline

CLI Startup Time

40ms median (x64, winapp --version) · ✅ -7ms vs. baseline

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Updated 2026-06-01 18:05:09 UTC · commit 1732c75 · workflow run

[Jaylyn-Barbee]

LGTM.