Rename setups and add provider reauthentication

server/src/models.rs

@@ -523,13 +523,13 @@ fn collect(root: &Path, dir: &Path, found: &mut Vec<LocalModel>) {
     }
 }
 
-/// Where a machine reached over ssh keeps its models, when its setup does
+/// Where a machine reached over ssh keeps its models, when its machine does
 /// not say.
 ///
 /// The same place this backend puts its own downloads, written out rather
 /// than derived: `$XDG_DATA_HOME` here describes *this* machine's
 /// environment, and the far machine's is the far machine's business. A
-/// setup whose models are elsewhere says so (`SshConfig::models_dir`).
+/// machine whose models are elsewhere says so (`SshConfig::models_dir`).
 const FAR_MODELS_DIR: &str = "~/.local/share/ai-app/models";
 
 /// Which directory holds the models on the machine `transport` reaches.
@@ -550,11 +550,11 @@ pub fn dir_on(transport: &Transport, local: &Path) -> String {
     }
 }
 
-/// Every GGUF on the machine a setup names, which is the machine that
+/// Every GGUF on a configured machine, which is the machine that
 /// would have to serve it.
 ///
 /// The local half of this is [`ModelStore::list`], reading the same shape
-/// off this machine's disk; a caller picks by transport, since a setup
+/// off this machine's disk; a caller picks by transport, since a machine
 /// with no ssh *is* this machine and asking a shell about it would be a
 /// slower way to the same answer. What must not happen is offering this
 /// backend's downloads for a session on another machine: the file has to