Support terminals with ssh in remote projects (#11913)

Release Notes:

- Added a way to create terminal tabs in remote projects, if an ssh
connection string is specified

crates/collab/src/db/queries/dev_servers.rs

@@ -73,6 +73,7 @@ impl Database {
     pub async fn create_dev_server(
         &self,
         name: &str,
+        ssh_connection_string: Option<&str>,
         hashed_access_token: &str,
         user_id: UserId,
     ) -> crate::Result<(dev_server::Model, proto::DevServerProjectsUpdate)> {
@@ -86,6 +87,9 @@ impl Database {
                 hashed_token: ActiveValue::Set(hashed_access_token.to_string()),
                 name: ActiveValue::Set(name.trim().to_string()),
                 user_id: ActiveValue::Set(user_id),
+                ssh_connection_string: ActiveValue::Set(
+                    ssh_connection_string.map(ToOwned::to_owned),
+                ),
             })
             .exec_with_returning(&*tx)
             .await?;

crates/collab/src/db/tables/dev_server.rs

@@ -10,6 +10,7 @@ pub struct Model {
     pub name: String,
     pub user_id: UserId,
     pub hashed_token: String,
+    pub ssh_connection_string: Option<String>,
 }
 
 impl ActiveModelBehavior for ActiveModel {}
@@ -32,6 +33,7 @@ impl Model {
             dev_server_id: self.id.to_proto(),
             name: self.name.clone(),
             status: status as i32,
+            ssh_connection_string: self.ssh_connection_string.clone(),
         }
     }
 }