v0.3.1 with Saxon fully working

CHANGELOG.md

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+# Changelog
+
+## 0.3.1
+
+### Added
+
+* Added global keyboard shortcut `Shift + Enter` to apply the current transformation.
+* Added global keyboard shortcut `F1` to open the help dialog.
+* Added shortcut hints for transformation and help actions.
+
+### Changed
+
+* Bumped application version to `0.3.1`.
+
+## 0.3.0
+
+### Added
+
+* Added browser-side SaxonJS dynamic compilation support.
+* Added support for raw XSLT 1.0, 2.0, and 3.0 transformations through the SaxonJS dynamic engine.
+* Added dynamic XSLT-to-SEF compilation in the browser using the full `SaxonJS2.js` browser artifact.
+* Added lazy loading for the SaxonJS browser compiler/runtime.
+* Added tests covering XSLT 1.0, XSLT 2.0, and XSLT 3.0 transformation scenarios.
+* Added project quality commands for type checking, linting, formatting, testing, building, and combined checks.
+
+### Changed
+
+* Made `saxon-js-dynamic` the primary SaxonJS-based engine for raw XML + raw XSLT workflows.
+* Removed the earlier failed npm-bundled SaxonJS approach.
+* Removed the SEF-only SaxonJS placeholder from the main workflow.
+* Excluded vendored SaxonJS files from linting and formatting.
+* Cleaned up debug-only code and unused declarations.
+* Improved transformation engine registry and test coverage.
+
+### Fixed
+
+* Fixed SaxonJS browser integration by using the full `SaxonJS2.js` artifact instead of `SaxonJS2.rt.js`.
+* Fixed dynamic compiler setup by providing a synthetic stylesheet base URI.
+* Fixed SaxonJS static parameter handling by passing an `XdmMap` instead of a plain JavaScript object.
+* Fixed browser compiler result extraction by reading `checkedOptions.principalResult`.
+* Removed duplicate XML output replacement after transformations.
+
+## 0.2.0
+
+- Added SaxonJS 2.7 as the default transformation engine.
+- Added lazy loading for the SaxonJS runtime so it is split into a separate build chunk.
+- Kept the native browser `XSLTProcessor` engine as selectable fallback.
+- Switched the default example stylesheet to XSLT 3.0 and added an `upper-case()` example.
+- Added a SaxonJS transformation test.
+- Updated README with SaxonJS runtime and licensing notes.
+
+## 0.1.0
+
+- Initial browser-only XSLT tools MVP.
+- Added three-panel XML/XSLT/output workbench.
+- Added native browser XSLTProcessor engine.
+- Added LocalStorage persistence, file open/save, overwrite confirmations, snippets, validation, and approximate explain table.