Add release checklist (#170)

Author: SmilyOrg

RELEASE_CHECKLIST.md

@@ -0,0 +1,126 @@
+# Release Checklist
+
+This checklist covers the common steps for creating a Photofield release.
+
+## Prerequisites
+
+- [ ] You are on the `main` branch
+- [ ] Working directory is clean (no uncommitted changes)
+- [ ] All planned features/fixes are merged
+- [ ] CI is passing on main branch
+
+## Pre-Release
+
+### Documentation & README
+
+- [ ] Update `docs/` with any new features or configuration changes
+- [ ] Update `README.md` if there are significant changes
+  - Features list
+  - Installation instructions
+  - Screenshots/demos if UI changed
+- [ ] Update `defaults.yaml` documentation comments if config changed
+
+### Testing & Changelog
+
+- [ ] Document all changes using changie
+  - Use `task added` for new features
+  - Use `task fixed` for bug fixes
+  - Use `task breaking` for breaking changes
+  - Use `task deprecated` for deprecations
+  - Use `task removed` for removed features
+  - Use `task security` for security updates
+- [ ] Test locally with embedded build: `task run:embed`
+- [ ] Run tests: `task test`
+- [ ] Run e2e tests: `task e2e:ci`
+
+## Creating the Release
+
+- [ ] Run `task release`
+  - Batches changelog entries into a version file
+  - Opens the version file in your editor for review/editing
+  - Merges changes into CHANGELOG.md
+  - Commits with "Release vX.Y.Z" message
+  - Creates git tag
+
+- [ ] Review the release commit: `git show HEAD`
+- [ ] Verify the changelog looks good: `task release:changelog`
+
+## Publishing
+
+- [ ] Push the release: `task release:push`
+
+- [ ] **While CI is running**, update external listings:
+  - [ ] Update feature list at https://github.com/meichthys/foss_photo_libraries (issue #95)
+  - [ ] Announce on Discord: https://discord.gg/qjMxfCMVqM
+
+- [ ] Wait for CI to complete: https://github.com/SmilyOrg/photofield/actions
+
+- [ ] Review the GitHub Release draft
+  - Edit release notes if needed
+  - Add screenshots/GIFs if applicable (for UI changes or new features)
+  - Check attached artifacts are present
+  - **Publish the release**
+
+## Post-Release Verification
+
+- [ ] Test Docker image: `docker pull ghcr.io/smilyorg/photofield:latest`
+- [ ] Verify Docker tags created at https://github.com/SmilyOrg/photofield/pkgs/container/photofield
+- [ ] Monitor for issues
+  - GitHub issues
+  - Discord feedback
+
+## If Something Goes Wrong
+
+### Before pushing to GitHub
+
+- [ ] Undo the release locally: `task release:undo`
+  - Removes the tag and commit
+  - Make fixes and try again
+
+### After pushing to GitHub
+
+- [ ] Delete the tag locally: `git tag -d vX.Y.Z`
+- [ ] Delete the tag remotely: `git push origin :refs/tags/vX.Y.Z`
+- [ ] Delete the release commit locally: `git reset --hard HEAD~1`
+- [ ] Force push: `git push -f origin main`
+- [ ] Delete GitHub Release draft if created
+- [ ] Make fixes and create a new release
+
+## Release Types
+
+### Semantic Versioning (at version 0.x)
+
+- **Patch** (0.X.Y+1): Bug fixes, security patches
+  - Use `task fixed` or `task security`
+- **Minor** (0.X+1.0): New features, breaking changes (pre-1.0), removals
+  - Use `task added`, `task breaking`, `task removed`, or `task deprecated`
+- **Major** (1.0.0+): Reserved for 1.0 stable release
+
+Changie automatically determines version bump based on change types.
+
+## Useful Commands
+
+- `task release:version` - Show current/next version
+- `task release:changelog` - Preview changelog for latest release
+- `task release:title` - Get the release title
+- `changie latest` - Get latest version string
+- `git describe --tags` - Show current version with git info
+- `task check` - Verify dependencies and generated files are up to date
+- `task package` - Build all platform binaries locally (for testing)
+- `task release:local` - Build and test Docker image locally
+
+## Notes
+
+- Release artifacts include binaries for:
+  - Linux (amd64, arm, arm64, 386, loong64, ppc64le, riscv64, s390x)
+  - macOS (amd64, arm64)
+  - Windows (amd64, arm64, 386)
+  - OpenBSD (amd64, arm64)
+
+- Docker images are multi-arch (amd64, arm64)
+
+- CI automatically skips duplicate builds on release commits to main branch
+
+- All releases are created as drafts first, allowing final review before publishing
+
+- Build artifacts are attested for supply chain security