ssh: Fix abs paths in file history & repeated go-to-def (#19027)

This fixes two things:

- Go-to-def to absolute paths (i.e. opening stdlib files) multiple times
(opening, dropping, and re-opening worktrees)
- Re-opening abs paths from the file picker history that were added
there by go-to-def


Release Notes:

- N/A

---------

Co-authored-by: Bennet <bennet@zed.dev>

crates/proto/proto/zed.proto

@@ -282,7 +282,9 @@ message Envelope {
         CheckFileExists check_file_exists = 255;
         CheckFileExistsResponse check_file_exists_response = 256;
 
-        ShutdownRemoteServer shutdown_remote_server = 257; // current max
+        ShutdownRemoteServer shutdown_remote_server = 257;
+
+        RemoveWorktree remove_worktree = 258; // current max
     }
 
     reserved 87 to 88;
@@ -2432,6 +2434,7 @@ message GetLlmTokenResponse {
 message AddWorktree {
     uint64 project_id = 2;
     string path = 1;
+    bool visible = 3;
 }
 
 message AddWorktreeResponse {
@@ -2460,3 +2463,7 @@ message CheckFileExistsResponse {
 }
 
 message ShutdownRemoteServer {}
+
+message RemoveWorktree {
+    uint64 worktree_id = 1;
+}

crates/proto/src/proto.rs

@@ -364,6 +364,7 @@ messages!(
     (CheckFileExists, Background),
     (CheckFileExistsResponse, Background),
     (ShutdownRemoteServer, Foreground),
+    (RemoveWorktree, Foreground),
 );
 
 request_messages!(
@@ -486,7 +487,8 @@ request_messages!(
     (LspExtSwitchSourceHeader, LspExtSwitchSourceHeaderResponse),
     (AddWorktree, AddWorktreeResponse),
     (CheckFileExists, CheckFileExistsResponse),
-    (ShutdownRemoteServer, Ack)
+    (ShutdownRemoteServer, Ack),
+    (RemoveWorktree, Ack)
 );
 
 entity_messages!(