The backend library route installs a backend from an add-on library
entry, and the admin REST surface and the MCP catalog must stay in step.
Add the install_library_backend tool with an in-process and an HTTP
client, the route map entry, the safety-rule listing and a skill recipe.
Listing library entries stays on the add-on routes, which the assistant
does not expose, so no list tool is added.
Assisted-by: Claude Code:claude-sonnet-5-5
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>