chore: migrate Regex Tools to LocalToolBox

CHANGELOG.md

@@ -2,6 +2,17 @@
 
 ## Unreleased
 
+## 0.4.2 — 2026-07-27
+
+- Move canonical source and package identity from the `zemion` account to the
+  `lotobo` organization and consume Toolbox SDK 0.2.3 from its new namespace.
+- Remove the outer application frame and align the workbench with the shared
+  `min(100%, 90rem)` Toolbox content width.
+- Replace the favicon with a file-style Regex mark derived from the MIT-licensed
+  OOjs regular-expression icon, retaining its licence and attribution.
+- Rebuild the Go WebAssembly engine so its embedded module path uses the new
+  canonical repository identity.
+
 ## 0.4.1 — 2026-07-27
 
 - Keep the last completed syntax and execution frame visible while edited