Move git status out of Entry (#22224)

- [x] Rewrite worktree git handling
- [x] Fix tests
- [x] Fix `test_propagate_statuses_for_repos_under_project`
- [x] Replace `WorkDirectoryEntry` with `WorkDirectory` in
`RepositoryEntry`
- [x] Add a worktree event for capturing git status changes
- [x] Confirm that the local repositories are correctly updating the new
WorkDirectory field
- [x] Implement the git statuses query as a join when pulling entries
out of worktree
- [x] Use this new join to implement the project panel and outline
panel.
- [x] Synchronize git statuses over the wire for collab and remote dev
(use the existing `worktree_repository_statuses` table, adjust as
needed)
- [x] Only send changed statuses to collab

Release Notes:

- N/A

---------

Co-authored-by: Cole Miller <cole@zed.dev>
Co-authored-by: Mikayla <mikayla@zed.com>
Co-authored-by: Nathan <nathan@zed.dev>

crates/project/src/worktree_store.rs

@@ -62,6 +62,7 @@ pub enum WorktreeStoreEvent {
     WorktreeReleased(EntityId, WorktreeId),
     WorktreeOrderChanged,
     WorktreeUpdateSent(Model<Worktree>),
+    GitRepositoryUpdated,
 }
 
 impl EventEmitter<WorktreeStoreEvent> for WorktreeStore {}
@@ -322,6 +323,7 @@ impl WorktreeStore {
             let worktree = Worktree::local(path.clone(), visible, fs, next_entry_id, &mut cx).await;
 
             let worktree = worktree?;
+
             this.update(&mut cx, |this, cx| this.add(&worktree, cx))?;
 
             if visible {
@@ -374,6 +376,17 @@ impl WorktreeStore {
             this.send_project_updates(cx);
         })
         .detach();
+
+        cx.subscribe(
+            worktree,
+            |_this, _, event: &worktree::Event, cx| match event {
+                worktree::Event::UpdatedGitRepositories(_) => {
+                    cx.emit(WorktreeStoreEvent::GitRepositoryUpdated);
+                }
+                worktree::Event::DeletedEntry(_) | worktree::Event::UpdatedEntries(_) => {}
+            },
+        )
+        .detach();
     }
 
     pub fn remove_worktree(&mut self, id_to_remove: WorktreeId, cx: &mut ModelContext<Self>) {
@@ -583,11 +596,11 @@ impl WorktreeStore {
     pub fn shared(
         &mut self,
         remote_id: u64,
-        downsteam_client: AnyProtoClient,
+        downstream_client: AnyProtoClient,
         cx: &mut ModelContext<Self>,
     ) {
         self.retain_worktrees = true;
-        self.downstream_client = Some((downsteam_client, remote_id));
+        self.downstream_client = Some((downstream_client, remote_id));
 
         // When shared, retain all worktrees
         for worktree_handle in self.worktrees.iter_mut() {