fix: details toggle UX, Edge Runtime warnings, minimatch CVE

- Keep show/hide details button in place when expanded (#18)
- Use i18n translations for details toggle text
- Split instrumentation for Edge Runtime compatibility
- Patch minimatch ReDoS (CVE-2026-27903)

CHANGELOG.md

@@ -0,0 +1,26 @@
+# Changelog
+
+## 1.1.1 (2026-02-28)
+
+### Fixes
+
+- **Email viewer**: Show/hide details toggle now stays in place when expanded instead of jumping to the bottom of the details section (#18)
+- **Email viewer**: Details toggle text is now properly translated (was hardcoded in English)
+- **Instrumentation**: Resolve Edge Runtime warnings by splitting Node.js-only code into a separate module
+- **Security**: Patch minimatch ReDoS vulnerability (CVE-2026-27903) — upgrade 9.0.6→9.0.9 and 3.1.3→3.1.5
+
+## 1.1.0 (2026-02-28)
+
+- Server-side version update check on startup (logs when a newer release is available)
+
+## 1.0.2 (2026-02-27)
+
+- Fix 4 CVEs in production Docker image (removed npm, upgraded Alpine packages)
+
+## 1.0.1 (2026-02-26)
+
+- Remove stale references, clean up README
+
+## 1.0.0 (2026-02-25)
+
+- Initial public release