Find fs-extra usages that need manual migration

Marks every fs-extra usage the automated migration leaves in place — move, emptyDir, ensureLink/ensureSymlink, exists, promise-form open, glob and fd-based methods, calls whose last argument may or may not be a callback, calls with unsupported arguments, fs-extra used as a value, type imports, re-exports, dynamic imports, and test mocks — and records each with a suggested replacement in the FsExtraManualMigrationSteps data table.