v0.4.0

Co-authored-by: Copilot <copilot@github.com>

CHANGELOG.md

@@ -7,6 +7,19 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.4.0] - 2026-05-02
+
+### Added
+- `POST /manage/import` — import emotes from a legacy JSON endpoint, downloading
+  each image and mirroring it to S3 with original timestamps preserved.
+- Duplicate detection: emotes whose name already exists are skipped (compatible
+  with both SQLite and PostgreSQL).
+- Host allowlist for import source URLs, configurable via `[import]
+  allowed_hosts` in `config.toml` (default: `["smutba.se"]`).
+- Dry-run mode (`"dry_run": true` in request body): previews the import without
+  writing to S3 or the database. Result statuses are `"would_import"` and
+  `"would_skip"` instead of `"imported"` and `"skipped"`.
+
 ## [0.3.0] - 2026-04-28
 
 ### Added
@@ -71,7 +84,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Database migrations run automatically on startup.
 - GitHub Actions release workflow building a Linux binary on `v*` tag push.
 
-[Unreleased]: https://git.open3dlab.com/Open3DLab/mikebase/compare/v0.3.0...HEAD
+[Unreleased]: https://git.open3dlab.com/Open3DLab/mikebase/compare/v0.4.0...HEAD
+[0.4.0]: https://git.open3dlab.com/Open3DLab/mikebase/compare/v0.3.0...v0.4.0
 [0.3.0]: https://git.open3dlab.com/Open3DLab/mikebase/compare/v0.2.4...v0.3.0
 [0.2.4]: https://git.open3dlab.com/Open3DLab/mikebase/compare/v0.2.3...v0.2.4
 [0.2.3]: https://git.open3dlab.com/Open3DLab/mikebase/compare/v0.2.2...v0.2.3