fix: parse task headings with dash variants

tests/test_tasks.py

@@ -18,6 +18,36 @@ def test_get_next_task(tmp_path: Path) -> None:
     assert task.title == "Second"
 
 
+def test_get_next_task_with_em_dash(tmp_path: Path) -> None:
+    (tmp_path / "TASKS.md").write_text(
+        "# TASKS.md\n\n"
+        "## TASK-001 — First\nStatus: Done\n\n"
+        "## TASK-002 — Second\nStatus: Todo\n\n",
+        encoding="utf-8",
+    )
+
+    task = get_next_task(tmp_path)
+
+    assert task is not None
+    assert task.task_id == "TASK-002"
+    assert task.title == "Second"
+
+
+def test_get_next_task_with_en_dash(tmp_path: Path) -> None:
+    (tmp_path / "TASKS.md").write_text(
+        "# TASKS.md\n\n"
+        "## TASK-001 – First\nStatus: Done\n\n"
+        "## TASK-002 – Second\nStatus: Todo\n\n",
+        encoding="utf-8",
+    )
+
+    task = get_next_task(tmp_path)
+
+    assert task is not None
+    assert task.task_id == "TASK-002"
+    assert task.title == "Second"
+
+
 def test_update_task_status(tmp_path: Path) -> None:
     tasks = tmp_path / "TASKS.md"
     tasks.write_text(