Release Notes v0.3.33

Changes

• Added vl Debian package alias (/usr/local/bin/vl -> vaultline) for shorter CLI usage.
• Added completion support for both vaultline and vl, including store unseal --from-secret cross-store completion flow.
• Added top-level version command and aligned --version to print only the raw version string.
• Improved unknown-command UX by printing usage alongside the error.
• Updated docs quick-start examples to use the installed vaultline binary instead of go run.