fix(build): modernize package configuration, dependencies, and test setup for current toolchain compatibility

changelog.md

@@ -0,0 +1,55 @@
+# Changelog
+
+## 2026-05-01 - 3.0.4 - fix(build)
+modernize package configuration, dependencies, and test setup for current toolchain compatibility
+
+- adds package exports and includes project metadata files in published artifacts
+- updates build and test tooling to the current @git.zone and @push.rocks package namespaces
+- replaces the previous test file with node-specific tests that gate SMTP and sendmail integration runs behind environment flags
+- tightens TypeScript settings and typing in sendSmartMail while returning transport errors directly instead of swallowing them
+
+## 2026-03-01 - 3.0.3 - maintenance
+Project maintenance updates and repository metadata cleanup.
+
+- Removed `.gitlab-ci.yml`
+- Includes summarized non-functional updates across 2024 for project description, TypeScript configuration, and `npmextra.json` git host settings
+
+## 2022-08-07 - 3.0.2 - core
+Bugfix release for core updates.
+
+- Applied a core update fix
+
+## 2022-08-07 - 3.0.1 - core
+Bugfix release for core updates.
+
+- Applied a core update fix
+
+## 2022-08-07 - 3.0.0 - core
+Bugfix release for core updates following the major release.
+
+- Applied a core update fix
+
+## 2022-08-07 - 2.0.0 - core
+Major runtime modernization release.
+
+- **Breaking change:** switched the core package to ESM
+
+## 2021-06-15 - 1.0.8 - smartsmtp
+Expanded mail delivery support.
+
+- **Breaking change:** `smartsmtp` now supports sending mails with `sendmail`
+
+## 2020-08-15 - 1.0.7 - core
+Bugfix release for core updates.
+
+- Applied a core update fix
+
+## 2020-08-12 - 1.0.6 - core
+Maintenance bugfix release.
+
+- Applied a core update fix
+
+## 2020-08-12 - 1.0.1 - 1.0.5 - core
+Summarized range of trivial core patch releases.
+
+- Versions `1.0.1` through `1.0.5` consist of repeated minor core update fixes with no distinct functional changes called out in commit history