feat(core,frontends,agents): agent kinds, frontend routing, anthropic on conversations, vault mirror

src/beaver_gateway/frontends/markdown/renderer.py

@@ -53,6 +53,11 @@ def render_user_text(content: str) -> str:
     return f"### User:\n\n{content.strip()}\n"
 
 
+def render_assistant_text(text: str) -> str:
+    r"""Render a text-only assistant turn as ``### Assistant:\n\n<text>``."""
+    return f"### Assistant:\n\n{text.strip()}\n"
+
+
 def render_assistant_message(message: Message) -> str:
     """Render an assistant ``Message`` (with content blocks) into a turn block.