debugger: Fix new session modal not having worktree scenarios (#29453)

Closes #ISSUE

Release Notes:

- N/A

crates/debugger_ui/src/new_session_modal.rs

@@ -197,6 +197,11 @@ impl NewSessionModal {
         let workspace = self.workspace.clone();
         let weak = cx.weak_entity();
         let last_profile = self.last_selected_profile_name.clone();
+        let worktree = workspace
+            .update(cx, |this, cx| {
+                this.project().read(cx).visible_worktrees(cx).next()
+            })
+            .unwrap_or_default();
         DropdownMenu::new(
             "debug-config-menu",
             last_profile.unwrap_or_else(|| SELECT_SCENARIO_LABEL.clone()),
@@ -250,7 +255,9 @@ impl NewSessionModal {
                             .task_inventory()
                             .iter()
                             .flat_map(|task_inventory| {
-                                task_inventory.read(cx).list_debug_scenarios(None)
+                                task_inventory.read(cx).list_debug_scenarios(
+                                    worktree.as_ref().map(|worktree| worktree.read(cx).id()),
+                                )
                             })
                             .collect()
                     })

crates/project/src/task_inventory.rs

@@ -555,6 +555,7 @@ impl Inventory {
                 });
             }
         };
+
         let new_templates = raw_tasks.into_iter().filter_map(|raw_template| {
             serde_json::from_value::<DebugScenario>(raw_template).log_err()
         });

crates/task/src/debug_format.rs

@@ -59,6 +59,7 @@ pub struct LaunchRequest {
     /// The program that you trying to debug
     pub program: String,
     /// The current working directory of your project
+    #[serde(default)]
     pub cwd: Option<PathBuf>,
     /// Arguments to pass to a debuggee
     #[serde(default)]
@@ -155,6 +156,7 @@ pub struct DebugScenario {
     /// Name of the debug task
     pub label: SharedString,
     /// A task to run prior to spawning the debuggee.
+    #[serde(default)]
     pub build: Option<SharedString>,
     #[serde(flatten)]
     pub request: Option<DebugRequest>,