fix(ci): exclude generated _version.py from ruff, restore mypy type guard

- Add _version.py to ruff exclude (setuptools-scm generated file)
- Restore assert with noqa:S101 annotation for mypy type narrowing

Change-Id: Ie640516e377c937dbb7145da6ca2c8e0424b8f84
Co-developed-by: Claude <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: congxiao-wxx

pyproject.toml

@@ -59,6 +59,7 @@ dev = [
 [tool.ruff]
 line-length = 88
 target-version = "py310"
+exclude = ["src/agentrun_cli/_version.py"]
 
 [tool.ruff.lint]
 select = ["E", "F", "I", "W", "S", "B", "UP"]

src/agentrun_cli/commands/super_agent/invoke_cmd.py

@@ -35,7 +35,7 @@ def _parse_messages(message: str | None, messages_json: str | None) -> list[dict
         raise click.UsageError("One of --message/-m or --messages is required")
     if message:
         return [{"role": "user", "content": message}]
-    # At this point messages_json is guaranteed non-None by the guard above.
+    assert messages_json is not None  # noqa: S101 — narrowing for mypy; guarded above
     try:
         parsed = json.loads(messages_json)
     except (TypeError, ValueError) as e: