ci: reduce release polling cron to daily at 04:17 UTC

[rlauuzo]

Reduces the release workflow's upstream polling from every 30 minutes to once daily. Catalog delivery is already gated by the manifest repository's daily 06:00 UTC update cron, so sub-daily release polling added churn (several tags per day rotating the manifest's 5-version window) without getting updates to users any faster. Daily polling batches a whole day's segment-editor changes into one release.

• 17 4 * * * rather than a top-of-the-hour slot: GitHub deprioritizes scheduled runs at high-load times (the old */30 cron actually fired every 1–2.5 hours), and 04:17 leaves a >1.5h buffer for the release to publish before the manifest cron scans at 06:00 UTC
• Urgent releases remain available on demand via workflow_dispatch (with force_release if the upstream SHA hasn't changed), which also forwards to the 12.0 branch via the dispatch-jellyfin-12 job

Summary by Sourcery

CI:

• Update release workflow cron expression to reduce upstream polling frequency to a single daily run at 04:17 UTC.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

This PR adjusts the release GitHub Actions workflow to poll upstream once per day at 04:17 UTC instead of every 30 minutes, aligning with downstream manifest update timing and reducing unnecessary churn while preserving manual trigger support.

Sequence diagram for updated release workflow scheduling

sequenceDiagram
    participant GitHubCron as GitHub_schedule_17_4_UTC
    participant ReleaseWorkflow as Release_workflow_release_yml
    participant ManifestCron as Manifest_repo_cron_06_UTC
    actor Maintainer

    GitHubCron->>ReleaseWorkflow: run release workflow (daily 17 4 * * *)
    ReleaseWorkflow->>ManifestCron: publish updated release before 06:00 UTC

    Maintainer->>ReleaseWorkflow: workflow_dispatch (force_release)
    ReleaseWorkflow->>ManifestCron: publish urgent release before next scan

Loading

File-Level Changes

Change	Details	Files
Adjust release workflow schedule to run once daily at a specific off-peak time instead of every 30 minutes.	Updated the GitHub Actions schedule trigger cron expression from a 30-minute interval to a single daily run at 04:17 UTC. Retained existing repository_dispatch triggers for urgent or manual releases without modification.	.github/workflows/release.yml

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Code Review Summary

Status: No Issues Found | Recommendation: Merge

Overview

Severity	Count
CRITICAL	0
WARNING	0
SUGGESTION	0

Files Reviewed (1 file)

• .github/workflows/release.yml - Cron expression change only; no issues found

Notes

This PR modifies only .github/workflows/release.yml, changing the scheduled release polling from every 30 minutes to daily at 04:17 UTC. No C#/.NET source files were touched, so the requested .NET/C# design pattern review criteria do not apply to this change. The cron expression 17 4 * * * is syntactically valid and aligns with the PR description's intent.

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_{Reviewed by step-3.7-flash · Input: 37.4K · Output: 2.4K · Cached: 115.2K}