SSH Remoting: Fix bugs in worktree syncing (#18406)

Release Notes:

- N/A

---------

Co-authored-by: conrad <conrad@zed.dev>

crates/collab/src/db/ids.rs

@@ -32,6 +32,7 @@ macro_rules! id_type {
             #[allow(unused)]
             #[allow(missing_docs)]
             pub fn from_proto(value: u64) -> Self {
+                debug_assert!(value != 0);
                 Self(value as i32)
             }
 

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

@@ -285,7 +285,7 @@ impl Database {
                 )
                 .one(&*tx)
                 .await?
-                .ok_or_else(|| anyhow!("no such project"))?;
+                .ok_or_else(|| anyhow!("no such project: {project_id}"))?;
 
             // Update metadata.
             worktree::Entity::update(worktree::ActiveModel {