Stricter slug path processing, only serve site on 404 of missing article paths, not any other path.

pagerite/app.py

@@ -563,8 +563,9 @@ async def show_page(request: Request, path: str) -> HTMLResponse | Response:
     """
     path = path.strip("/")
     if path and _is_reserved(path):
-        # Reserved slug shape: never content — no tree lookup.
-        return HTMLResponse(views.render_not_found(data.menu, path, data.brand, data.custom_css, data.theme), 404)
+        # Invalid slug shape: not a content URL, let FastAPI return its
+        # built-in 404 instead of rendering an editable article page.
+        raise HTTPException(404)
     chain = resolve(data.menu, path)
     node = chain[-1] if chain else None
     if node is not None and node.published and node.content is not None:

pagerite/views.py

@@ -353,7 +353,7 @@ def render_not_found(
     doc = E.article
     with doc:
         doc.h1("Not Found")
-        doc.p(f"No page at /{path}.")
+        doc.p(f"No article at /{path}. If there was before, it may have been deleted.")
     scripts, styles = _page_assets(theme)
     return str(
         _layout(styles, scripts, custom_css, theme)(