Start work on renames

crates/rpc/src/proto.rs

@@ -167,6 +167,10 @@ messages!(
     (LeaveProject, Foreground),
     (OpenBuffer, Foreground),
     (OpenBufferResponse, Foreground),
+    (PerformRename, Background),
+    (PerformRenameResponse, Background),
+    (PrepareRename, Background),
+    (PrepareRenameResponse, Background),
     (RegisterProjectResponse, Foreground),
     (Ping, Foreground),
     (RegisterProject, Foreground),
@@ -205,6 +209,8 @@ request_messages!(
     (JoinProject, JoinProjectResponse),
     (OpenBuffer, OpenBufferResponse),
     (Ping, Ack),
+    (PerformRename, PerformRenameResponse),
+    (PrepareRename, PrepareRenameResponse),
     (RegisterProject, RegisterProjectResponse),
     (RegisterWorktree, Ack),
     (SaveBuffer, BufferSaved),
@@ -233,6 +239,7 @@ entity_messages!(
     JoinProject,
     LeaveProject,
     OpenBuffer,
+    PrepareRename,
     RemoveProjectCollaborator,
     SaveBuffer,
     ShareWorktree,