Add automated release notes generation

[Kyle-Ye]

Summary

• Extract release notes generation into a standalone reusable workflow (release_notes.yml) with workflow_dispatch support for manual testing
• Auto-generate Highlights via Claude Code, What's Changed via GitHub API, and a fixed Binary Integration section pointing to OpenSwiftUI-spm
• XCFramework build now only uploads assets without overwriting the release body
• Fix secrets context not available in job-level if: condition that caused the 0.17.2 release workflow to fail

Pipeline

release-notes (ubuntu, ~1-2 min)
    ├── GitHub API → "What's Changed"
    ├── Claude Code (opus 4.6) → "Highlights"
    └── Fixed "Binary Integration" → OpenSwiftUI-spm
         │
build-xcframeworks (macos-15)
    └── Upload assets only (body untouched)
         │
update-binary-repo (ubuntu)
    └── Update OpenSwiftUI-spm Package.swift

Setup required

• Add CLAUDE_CODE_OAUTH_TOKEN to GitHub repo secrets

Test plan

• Manually trigger Release Notes workflow with a tag (e.g. 0.17.1) to verify output
• Tag a new release and verify the full pipeline

[augmentcode]

🤖 Augment PR Summary

Summary: This PR restructures the release pipeline to generate and publish release notes automatically before uploading XCFramework assets.

Changes:

• Splits release notes generation into a reusable workflow (.github/workflows/release_notes.yml) with workflow_dispatch and workflow_call support
• Generates “What’s Changed” via GitHub’s releases/generate-notes API and prepends an AI-generated “Highlights” section (Claude Code when token is available)
• Adds a fixed “Binary Integration” snippet pointing to OpenSwiftUI-spm and updates/creates the GitHub Release body accordingly
• Updates the main release.yml to run release notes first, then build/upload XCFramework assets without overwriting the release body
• Fixes the binary repo update gating by moving the secret check into the step script (avoids job-level if: with secrets)

Technical Notes: Requires CLAUDE_CODE_OAUTH_TOKEN secret for automated Highlights; otherwise a placeholder Highlights section is emitted.

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[augmentcode]

Review completed. 1 suggestion posted.

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

[augmentcode]

The heredoc terminator (STATIC_EOF) is indented; in bash the terminator must start at column 1 or the heredoc won’t close and this step will fail. This also applies to the other heredocs in this workflow (including INTEGRATION_EOF).

Severity: high

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 26.84%. Comparing base (4b9e0a4) to head (5fe663d).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #846      +/-   ##
==========================================
- Coverage   26.85%   26.84%   -0.01%     
==========================================
  Files         671      671              
  Lines       43470    43470              
==========================================
- Hits        11675    11671       -4     
- Misses      31795    31799       +4     

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