salesforce-metadata-api-zip-root-no-src-prefix

Salesforce Metadata API (non-SFDX) requires package.xml at the zip root with no directory prefix — files should be classes/MyClass.cls, NOT src/classes/MyClass.cls. Using the src/ SFDX convention causes a “No package.xml found” deployment error. sf_build_deploy_package had this bug and required removal of the prefix.