fix: prevent sidebar action menus from being cropped

Use viewport-constrained positioning for sidebar action menus and keep the auth warning test isolated from local models.json config so pre-commit verification is deterministic.

src/client/src/components/MachineList.ts

@@ -124,7 +124,7 @@ export class MachineList extends LitElement implements KeyboardNavigableSection
       this.openMenuMachineId = undefined;
       return;
     }
-    this.menuStyle = actionMenuPanelStyle(target);
+    this.menuStyle = actionMenuPanelStyle(target, { constrainTo: "viewport" });
     this.openMenuMachineId = machineId;
   }
 

src/client/src/components/ProjectList.ts

@@ -109,7 +109,7 @@ export class ProjectList extends LitElement implements KeyboardNavigableSection
       this.openMenuProjectId = undefined;
       return;
     }
-    this.menuStyle = actionMenuPanelStyle(target);
+    this.menuStyle = actionMenuPanelStyle(target, { constrainTo: "viewport" });
     this.openMenuProjectId = projectId;
   }
 

src/client/src/components/SessionList.ts

@@ -336,7 +336,7 @@ export class SessionList extends LitElement implements KeyboardNavigableSection
       this.openMenuSessionId = undefined;
       return;
     }
-    this.menuStyle = actionMenuPanelStyle(target);
+    this.menuStyle = actionMenuPanelStyle(target, { constrainTo: "viewport" });
     this.openMenuSessionId = sessionId;
   }
 

src/client/src/components/WorkspaceList.ts

@@ -180,7 +180,7 @@ export class WorkspaceList extends LitElement implements KeyboardNavigableSectio
       this.openMenuWorkspaceId = undefined;
       return;
     }
-    this.menuStyle = actionMenuPanelStyle(target);
+    this.menuStyle = actionMenuPanelStyle(target, { constrainTo: "viewport" });
     this.openMenuWorkspaceId = workspaceId;
   }