remote ssh: Make "get permalink to line" work (#19366)

This makes the `editor: copy permalink to line` and `editor: copy
permalink to line` actions work in SSH remote projects.

Previously it would only work in local projects.

Demo:


https://github.com/user-attachments/assets/a8012152-b631-4b34-9ff2-e4d033c97dee




Release Notes:

- N/A

crates/remote_server/Cargo.toml

@@ -30,6 +30,8 @@ client.workspace = true
 env_logger.workspace = true
 fs.workspace = true
 futures.workspace = true
+git.workspace = true
+git_hosting_providers.workspace = true
 gpui.workspace = true
 http_client.workspace = true
 language.workspace = true

crates/remote_server/src/unix.rs

@@ -5,6 +5,7 @@ use client::ProxySettings;
 use fs::{Fs, RealFs};
 use futures::channel::mpsc;
 use futures::{select, select_biased, AsyncRead, AsyncWrite, AsyncWriteExt, FutureExt, SinkExt};
+use git::GitHostingProviderRegistry;
 use gpui::{AppContext, Context as _, ModelContext, UpdateGlobal as _};
 use http_client::{read_proxy_from_env, Uri};
 use language::LanguageRegistry;
@@ -313,6 +314,8 @@ pub fn execute_run(
     let listeners = ServerListeners::new(stdin_socket, stdout_socket, stderr_socket)?;
 
     log::info!("starting headless gpui app");
+
+    let git_hosting_provider_registry = Arc::new(GitHostingProviderRegistry::new());
     gpui::App::headless().run(move |cx| {
         settings::init(cx);
         HeadlessProject::init(cx);
@@ -322,6 +325,9 @@ pub fn execute_run(
 
         client::init_settings(cx);
 
+        GitHostingProviderRegistry::set_global(git_hosting_provider_registry, cx);
+        git_hosting_providers::init(cx);
+
         let project = cx.new_model(|cx| {
             let fs = Arc::new(RealFs::new(Default::default(), None));
             let node_settings_rx = initialize_settings(session.clone(), fs.clone(), cx);