style(spec): black blank line after _tasks_example

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: agentpike

cecli/spec/generate.py

@@ -200,6 +200,7 @@ def _generate_all_layers_body() -> str:
 def _tasks_example() -> str:
     return _TASKS_EXAMPLE_COMPACT if compact_spec_gen_enabled() else _TASKS_EXAMPLE
 
+
 _ALL_EXAMPLE = """\
 Format example (structure only; replace with the real feature):