- Add heal block to createPluginRouter's enable handler so it matches
routes.ts (directory-path registrations re-pointed at entry files)
- Test the 400 "no loadable entry file" install branch
- Add a real-fs drift-guard test asserting the CLI and @fusion/core
copies of resolvePluginEntryPath resolve identically
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>