debugger: Start on tabless design (#27837)

![image](https://github.com/user-attachments/assets/1cd54b70-5457-4c64-95bd-45a7055ea165)

Release Notes:

- N/A

---------

Co-authored-by: Anthony Eid <hello@anthonyeid.me>
Co-authored-by: Anthony <anthony@zed.dev>

crates/project/src/debugger/dap_store.rs

@@ -48,6 +48,7 @@ use worktree::Worktree;
 
 pub enum DapStoreEvent {
     DebugClientStarted(SessionId),
+    DebugSessionInitialized(SessionId),
     DebugClientShutdown(SessionId),
     DebugClientEvent {
         session_id: SessionId,
@@ -862,6 +863,10 @@ fn create_new_session(
             }
         }
 
+        this.update(cx, |_, cx| {
+            cx.emit(DapStoreEvent::DebugSessionInitialized(session_id));
+        })?;
+
         Ok(session)
     });
     task

crates/project/src/debugger/session.rs

@@ -537,7 +537,11 @@ impl LocalMode {
         Ok((adapter, binary))
     }
 
-    pub fn initialize_sequence(
+    pub fn label(&self) -> String {
+        self.config.label.clone()
+    }
+
+    fn initialize_sequence(
         &self,
         capabilities: &Capabilities,
         initialized_rx: oneshot::Receiver<()>,

crates/project/src/task_inventory.rs

@@ -125,6 +125,22 @@ impl Inventory {
         cx.new(|_| Self::default())
     }
 
+    pub fn list_debug_tasks(&self) -> Vec<&TaskTemplate> {
+        self.templates_from_settings
+            .worktree
+            .values()
+            .flat_map(|tasks| {
+                tasks.iter().filter_map(|(kind, tasks)| {
+                    if matches!(kind.1, TaskKind::Debug) {
+                        Some(tasks)
+                    } else {
+                        None
+                    }
+                })
+            })
+            .flatten()
+            .collect()
+    }
     /// Pulls its task sources relevant to the worktree and the language given,
     /// returns all task templates with their source kinds, worktree tasks first, language tasks second
     /// and global tasks last. No specific order inside source kinds groups.