Add changelog section for v0.0.34

Author: PEZ

CHANGELOG.md

@@ -4,6 +4,8 @@ Changes to Calva Backseat Driver
 
 ## [Unreleased]
 
+## [v0.0.34] - 2026-05-17
+
 - [Replace four structural editing tools with single batch `clojure_edit_files` tool](https://github.com/BetterThanTomorrow/calva-backseat-driver/issues/58)
   - Supports replace, insert, append, and create operations in one call
   - Schema pre-validation, automatic sort order, per-file diagnostics