Audit cleanup: security fixes, code reduction, test hygiene (#131)

src/dashboard/templating.py

@@ -0,0 +1,7 @@
+"""Shared Jinja2Templates instance for all dashboard routes."""
+
+from pathlib import Path
+
+from fastapi.templating import Jinja2Templates
+
+templates = Jinja2Templates(directory=str(Path(__file__).parent / "templates"))