Add an Install from file button to the Add-ons page. The file goes to the
owner, then the install dialog opens with the host access step, the file
sha256 and the notice that nothing signs a local file. An upgrade does
not turn the add-on on, an older version needs a tick, and the same
version is refused. The link that local-ai addons install prints opens
the dialog for the staged file. The list, the details and the host access
page show that the add-on came from an unsigned local file.
Assisted-by: Claude:claude-sonnet-5-5 eslint playwright