fix(kanban): make scratch cleanup explicit in dashboard (#63123)

tests/plugins/test_kanban_dashboard_plugin.py

@@ -9,6 +9,7 @@ from __future__ import annotations
 
 import importlib.util
 import os
+import subprocess
 import sys
 import time
 from pathlib import Path
@@ -114,6 +115,50 @@ def test_create_task_appears_on_board(client):
     assert "researcher" in data["assignees"]
 
 
+def test_board_list_recommends_persistent_workspace_for_configured_workdir(
+    client, tmp_path
+):
+    """Board metadata should tell the UI which safe task default to use."""
+    repo = tmp_path / "repo"
+    repo.mkdir()
+    subprocess.run(["git", "init", "-q", str(repo)], check=True)
+    kb.write_board_metadata("default", default_workdir=str(repo))
+
+    plain_dir = tmp_path / "notes"
+    plain_dir.mkdir()
+    kb.create_board("notes", default_workdir=str(plain_dir))
+    kb.create_board("disposable")
+
+    response = client.get("/api/plugins/kanban/boards")
+
+    assert response.status_code == 200
+    boards = {board["slug"]: board for board in response.json()["boards"]}
+    assert boards["default"]["default_workspace_kind"] == "worktree"
+    assert boards["notes"]["default_workspace_kind"] == "dir"
+    assert boards["disposable"]["default_workspace_kind"] == "scratch"
+
+
+def test_dashboard_workspace_picker_explains_persistence_contract():
+    """Task creation must make scratch deletion visible without a hover."""
+    bundle = (
+        Path(__file__).resolve().parents[2]
+        / "plugins"
+        / "kanban"
+        / "dashboard"
+        / "dist"
+        / "index.js"
+    ).read_text(encoding="utf-8")
+
+    assert "Temporary — deleted on completion" in bundle
+    assert "Git worktree — preserved" in bundle
+    assert "Directory — preserved" in bundle
+    assert "defaultWorkspacePath: (props.boardMeta && props.boardMeta.default_workdir) || \"\"" in bundle
+    assert (
+        "This workspace and any files left in it are deleted when the task completes."
+        in bundle
+    )
+
+
 def test_scheduled_tasks_have_their_own_column_not_todo(client):
     """Scheduled/time-delay tasks must not be silently bucketed into todo."""