debugger_ui: Update new process modal to include more context about its source (#36650)

Closes #36280

Release Notes:
  - Added additional context to debug task selection

Adding additional context when selecting a debug task to help with
projects that have multiple config files with similar names for tasks.

I think there is room for improvement, especially adding context for a
LanguageTask type. I started but it looked like it would need to add a
path value to that and wanted to make sure this was a good idea before
working on that.

Also any thoughts on the wording if you do like this format? 

---

<img width="1246" height="696" alt="image"
src="https://github.com/user-attachments/assets/b42e3f45-cfdb-4cb1-8a7a-3c37f33f5ee2"
/>

---------

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

crates/debugger_ui/src/tests/new_process_modal.rs

@@ -10,6 +10,7 @@ use text::Point;
 use util::path;
 
 use crate::NewProcessMode;
+use crate::new_process_modal::NewProcessModal;
 use crate::tests::{init_test, init_test_workspace};
 
 #[gpui::test]
@@ -178,13 +179,7 @@ async fn test_save_debug_scenario_to_file(executor: BackgroundExecutor, cx: &mut
 
     workspace
         .update(cx, |workspace, window, cx| {
-            crate::new_process_modal::NewProcessModal::show(
-                workspace,
-                window,
-                NewProcessMode::Debug,
-                None,
-                cx,
-            );
+            NewProcessModal::show(workspace, window, NewProcessMode::Debug, None, cx);
         })
         .unwrap();
 
@@ -192,7 +187,7 @@ async fn test_save_debug_scenario_to_file(executor: BackgroundExecutor, cx: &mut
 
     let modal = workspace
         .update(cx, |workspace, _, cx| {
-            workspace.active_modal::<crate::new_process_modal::NewProcessModal>(cx)
+            workspace.active_modal::<NewProcessModal>(cx)
         })
         .unwrap()
         .expect("Modal should be active");
@@ -281,6 +276,73 @@ async fn test_save_debug_scenario_to_file(executor: BackgroundExecutor, cx: &mut
     pretty_assertions::assert_eq!(expected_content, debug_json_content);
 }
 
+#[gpui::test]
+async fn test_debug_modal_subtitles_with_multiple_worktrees(
+    executor: BackgroundExecutor,
+    cx: &mut TestAppContext,
+) {
+    init_test(cx);
+
+    let fs = FakeFs::new(executor.clone());
+
+    fs.insert_tree(
+        path!("/workspace1"),
+        json!({
+            ".zed": {
+                "debug.json": r#"[
+                    {
+                        "adapter": "fake-adapter",
+                        "label": "Debug App 1",
+                        "request": "launch",
+                        "program": "./app1",
+                        "cwd": "."
+                    },
+                    {
+                        "adapter": "fake-adapter",
+                        "label": "Debug Tests 1",
+                        "request": "launch",
+                        "program": "./test1",
+                        "cwd": "."
+                    }
+                ]"#
+            },
+            "main.rs": "fn main() {}"
+        }),
+    )
+    .await;
+
+    let project = Project::test(fs.clone(), [path!("/workspace1").as_ref()], cx).await;
+
+    let workspace = init_test_workspace(&project, cx).await;
+    let cx = &mut VisualTestContext::from_window(*workspace, cx);
+
+    workspace
+        .update(cx, |workspace, window, cx| {
+            NewProcessModal::show(workspace, window, NewProcessMode::Debug, None, cx);
+        })
+        .unwrap();
+
+    cx.run_until_parked();
+
+    let modal = workspace
+        .update(cx, |workspace, _, cx| {
+            workspace.active_modal::<NewProcessModal>(cx)
+        })
+        .unwrap()
+        .expect("Modal should be active");
+
+    cx.executor().run_until_parked();
+
+    let subtitles = modal.update_in(cx, |modal, _, cx| {
+        modal.debug_picker_candidate_subtitles(cx)
+    });
+
+    assert_eq!(
+        subtitles.as_slice(),
+        [path!(".zed/debug.json"), path!(".zed/debug.json")]
+    );
+}
+
 #[gpui::test]
 async fn test_dap_adapter_config_conversion_and_validation(cx: &mut TestAppContext) {
     init_test(cx);