feat: release Office Tools 0.1.0

public/CHANGELOG.md

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+# Changelog
+
+All notable changes to Office Tools are documented here. Versions follow
+Semantic Versioning.
+
+## 0.1.0 - 2026-08-31
+
+### Added
+
+- Initial local-first Office Tools application and Toolbox 0.2.3 integration.
+- High-fidelity local DOCX/XLSX/PPTX canvas viewing with search, zoom and
+  document-aware navigation.
+- Project-owned bounded ODT/ODS/ODP package reader and semantic views for text,
+  tables, spreadsheets, slides, images, notes and safe styling.
+- Package-integrity, traversal, XML, expansion, repeat, cell, text and asset
+  protections with inert external/active content and visible diagnostics.
+- Responsive light, dark and system-mode shell with accessible file selection.
+- Relocatable installable build, strict release identity and deterministic ZIP
+  packaging with corresponding-source and licence material.