Synced from monorepo

Changes:
- Persist submitter identity for /feedback
- Let custom models use rotating tokens from named auth providers
- Template stale tool/param name literals in server-native descriptions
- Minimal mode commits thinking in full, lookups as one-liners
- Tighten durable append internals
- Nudge model to end turn on no-op bash commands
- Per-fetch signing nonce in the managed-config envelope, with a server-side replay probe
- Include working tree in startup status

crates/common/xai-computer-hub-sdk/src/notification.rs

@@ -233,7 +233,8 @@ mod tests {
         });
         let notif = HubNotification::parse(&value).expect("should parse as Unknown, not None");
         assert!(
-            matches!(notif, HubNotification::Unknown { ref method, .. } if method == "tool.notification"),
+            matches!(notif, HubNotification::Unknown { ref method, .. }
+if method == "tool.notification"),
             "tool.notification without envelope session_id should fall back to Unknown, got {notif:?}"
         );
     }
@@ -273,7 +274,8 @@ mod tests {
         });
         let notif = HubNotification::parse(&value).expect("should parse as Unknown, not None");
         assert!(
-            matches!(notif, HubNotification::Unknown { ref method, .. } if method == "tools_changed"),
+            matches!(notif, HubNotification::Unknown { ref method, .. }
+if method == "tools_changed"),
             "malformed tools_changed should fall back to Unknown, got {notif:?}"
         );
     }
@@ -355,7 +357,8 @@ mod tests {
         });
         let notif = HubNotification::parse(&value).expect("should parse as Unknown, not None");
         assert!(
-            matches!(notif, HubNotification::Unknown { ref method, .. } if method == "tool.notification"),
+            matches!(notif, HubNotification::Unknown { ref method, .. }
+if method == "tool.notification"),
             "malformed tool.notification should fall back to Unknown, got {notif:?}"
         );
     }