Commit 0c2b816 added Script to shopdb.api so a plugin can read the ShopDB-hosted script library that backs run_script delivery, but left __contract_version__ at 0.26.0. This bumps it to 0.27.0 so a plugin can pin core_version against the widened surface. Additive name, minor bump, matching the existing convention. The docs/PLUGIN-HOOKS wiki page (not tracked in-repo) still needs the Script entry.