ci: fix release and enable manual workflow

[rebEllieous]

What

• bin/* → explicit bin/solar-- bin/checksums.txt bin/*.sigstore.json in the upload step.
• Checksums now use find bin -maxdepth 1 -type f -name 'solar--'; the cosign loop iterates solar-- checksums.txt.
• Added workflow_dispatch with a tag input. release-assets runs on it and checks out that tag; the release-please job is skipped on manual runs.
• Documented the recovery step in docs/developer-guide/releasing.md.

Summary by CodeRabbit

• New Features

  • Added support for manually rerunning release asset builds using an existing release tag.
  • Release assets now include binaries, checksums, and signing verification bundles.

• Bug Fixes

  • Improved checksum and signing coverage to ensure all distributed release artifacts are validated.

• Documentation

  • Added recovery instructions for rebuilding and replacing missing or incomplete release assets.

[coderabbitai]

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⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

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Run ID: 4686bcf6-7f3c-4b15-b061-66c7a35c7bfd

📥 Commits

Reviewing files that changed from the base of the PR and between 60eef12 and 2edacfd.

📒 Files selected for processing (1)

• .github/workflows/release-please.yaml

📝 Walkthrough

Walkthrough

The release workflow now supports manual rebuilding of assets for an existing draft release tag. It limits checksums, signing, and uploads to defined release artefacts. The releasing guide documents recovery steps for failed asset jobs.

Changes

Release asset recovery

Layer / File(s)	Summary
Manual draft-release rebuild flow .github/workflows/release-please.yaml	Manual runs require a release tag, skip the release creation job, and use the tag for the asset version and checkout reference.
Artifact selection and recovery instructions .github/workflows/release-please.yaml, docs/developer-guide/releasing.md	Checksums include top-level solar-* binaries. Signing covers those binaries and checksums.txt. Uploads include binaries, checksums, and Sigstore bundles. The guide documents rerunning failed asset jobs for an existing draft release.

Estimated code review effort: 2 (Simple) | ~10 minutes

Merge Risk: 🟠 High · up to 60eef

The release workflow can upload each Sigstore bundle twice, causing GitHub to reject duplicate assets and preventing releases from completing. The glob must exclude these bundles before this change is merge-ready.

Sequence Diagram(s)

sequenceDiagram
  participant ReleaseOperator
  participant GitHubActions
  participant ReleaseAssetsJob
  participant DraftRelease
  ReleaseOperator->>GitHubActions: Dispatch workflow with release tag
  GitHubActions->>ReleaseAssetsJob: Start manual asset rebuild
  ReleaseAssetsJob->>ReleaseAssetsJob: Checkout tag and build solar binaries
  ReleaseAssetsJob->>ReleaseAssetsJob: Generate checksums and signatures
  ReleaseAssetsJob->>DraftRelease: Upload binaries, checksums, and Sigstore bundles

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Suggested reviewers: cbrgm

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Description check	⚠️ Warning	The description lists the changes but omits the required Why, Testing, Notes for reviewers, and Checklist sections.	Add the required template sections and document the motivation, testing performed, reviewer notes, and checklist status.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0 files. (2 skipped: 2 unsupported.)
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Title check	✅ Passed	The title clearly summarizes the release workflow fix and manual workflow support.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch ci/fix-release-workflow-enable-manual-workflow

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[coderabbitai]

Actionable comments posted: 1

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Inline comments:
In @.github/workflows/release-please.yaml:
- Around line 193-194: Update the release upload step around gh release upload
to build a binary list from bin/solar-*-* while excluding *.sigstore.json, then
append bin/checksums.txt and bin/*.sigstore.json exactly once before invoking
the upload command.

🪄 Autofix

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 71656a9e-00b4-40cc-9913-8ee3d50a641e

📥 Commits

Reviewing files that changed from the base of the PR and between 41a7c38 and 60eef12.

📒 Files selected for processing (2)

• .github/workflows/release-please.yaml
• docs/developer-guide/releasing.md

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[cbrgm]

LGTM, thanks for the fix!