loadConfigurationFromString workspaceDirectory

Trap: loadConfigurationFromString() appears equivalent to loading .craft.yml from disk, but workspace glob expansion historically called getConfigFilePath() and thus failed without a local config or used an unrelated one. Fix: thread an explicit workspace directory through workspace selection and glob resolution; prepare --config-from supplies Git’s repository top-level directory. This keeps remote configuration globs relative to the checked-out repository, not caller CWD discovery.