Avoid unnecessary setup for version reads - #20360
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Summary
Reading a project version only requires
pyproject.toml, or the lockfile under--frozen, but we previously initialized the cache for everyuv versioninvocation. The frozen path also discovered a Python interpreter solely to construct an installation target.Skip cache initialization for read-only version commands and construct the frozen lock target directly from the already-discovered workspace. Version updates retain the existing setup, while ordinary and frozen reads now work without a writable cache or available interpreter.