style: 修复 ruff EXE001 与冗余 noqa

engine_report.py 有 shebang 但缺执行位；三个 # noqa: E402 在本仓 ruff 配置下
E402 并未启用，属冗余抑制。移除后 `ruff check hooks scripts tests` 全绿。

Author: loong10k

scripts/engine_report.py

@@ -15,7 +15,7 @@
 
 sys.path.insert(0, str(Path(__file__).resolve().parent))
 
-from codeguard.engine import ENGINES, resolve_authoritative  # noqa: E402
+from codeguard.engine import ENGINES, resolve_authoritative
 
 PROBE_TIMEOUT = 10
 

tests/test_engine_boundary.py

@@ -12,8 +12,8 @@
 PLUGIN = Path(__file__).resolve().parents[1]
 sys.path.insert(0, str(PLUGIN / "scripts"))
 
-import engine_report  # noqa: E402
-from codeguard.engine import (  # noqa: E402
+import engine_report
+from codeguard.engine import (
     ENGINES,
     LEGACY,
     LEGACY_EXIT,