Legacy excelbench_rust Shim

WolfXL now uses wolfxl._rust as the primary native module name.

To preserve compatibility for existing environments, a shim package named excelbench-rust re-exports wolfxl._rust.

Guidance

• New code: import/use WolfXL interfaces (from wolfxl import ...).
• Existing legacy code: can continue to work via shim during migration.

Migration target

• Primary runtime module: wolfxl._rust
• Legacy compatibility module: excelbench_rust (shim)

Validation command

python3 -c "import wolfxl._rust as m; print(m.build_info())"

If you still depend on legacy imports, keep shim installed until the migration is complete.