Summary

• make the tag release workflow idempotent when a release already exists
• upload all Obsidian plugin release assets with clobber support on reruns
• generate provenance attestations for main.js, manifest.json, and styles.css using actions/attest@v4
• add the project AGENTS.md guide

Validation

• npm run build
• npm test
• git diff --check

Notes

npm run lint currently fails on an existing sentence-case warning in src/settings/settings-tab.ts, outside this release workflow change.