chore: add changelog

CHANGELOG.md

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+# Centurion Changelog
+
+## Core
+
+### v1.0.1 (2024-10-04)
+
+- Force registry paths to be lowercase to fix issues with commands containing uppercase characters.
+- Restrict command/group names to alphanumeric characters and underscores.
+- `BaseRegistry#getChildPaths` is now case-insensitive.
+
+### v1.0.0 (2024-09-28)
+
+- Initial release
+
+## UI
+
+### v1.0.2 (2024-09-29)
+
+- Surround suggestions in quotes if the argument being typed begins with a quote.
+
+### v1.0.1 (2024-09-28)
+
+- Fix suggestions for invalid arguments.
+- Fix suggestion traversal when the previous suggestion ends with a quote.
+
+### v1.0.0 (2024-09-28)
+
+- Initial release