feat: one gateway port with path-mounted frontends, markdown chat, collapsible sidebars

src/beaver_gateway/frontends/markdown/frontend.py

@@ -33,8 +33,6 @@ shape.
 
 from __future__ import annotations
 
-import asyncio
-import contextlib
 import json
 import logging
 import time
@@ -107,31 +105,22 @@ class MarkdownFrontend(Frontend):
 
     name = FRONTEND
     kinds = ("deep",)
+    path = "/md"
 
     def __init__(
         self,
         *,
         vault_path: Path | str,
-        host: str = "0.0.0.0",  # noqa: S104
-        port: int = 8003,
         default_agent: str | None = None,
         log_all_chats: bool = False,
         logged_subdir: str = "_logs",
         chat_path: Callable[[str, str, Path], Path] | None = None,
-        public_base_url: str | None = None,
     ) -> None:
         self.vault_path = Path(vault_path).expanduser().resolve()
-        self.host = host
-        self.port = port
         self.default_agent = default_agent
         self.log_all_chats = log_all_chats
         self.logged_subdir = logged_subdir
         self.chat_path = chat_path
-        # External URL prefix when behind a reverse proxy — same role as
-        # on the other bearer frontends. Trailing slash trimmed for
-        # idempotent concatenation; ``None`` means "no proxy / advertise
-        # raw host:port".
-        self.public_base_url = public_base_url.rstrip("/") if public_base_url else None
         self._runtime: GatewayRuntime | None = None
         self._app: FastAPI | None = None
         # Files currently being processed by an in-flight ``POST /chat``.
@@ -180,23 +169,11 @@ class MarkdownFrontend(Frontend):
     async def materialize(self, conv: Conversation) -> ConversationBinding | None:
         return await self.mirror.materialize(conv)
 
-    async def serve(self) -> None:
-        import uvicorn
+    def app(self) -> FastAPI | None:
+        return self._app
 
-        if self._app is None:
-            msg = "configure() must be called before serve()"
-            raise RuntimeError(msg)
-        config = uvicorn.Config(
-            self._app, host=self.host, port=self.port, log_level="info"
-        )
-        server = uvicorn.Server(config)
-        mirror = asyncio.create_task(self.mirror.run())
-        try:
-            await server.serve()
-        finally:
-            mirror.cancel()
-            with contextlib.suppress(asyncio.CancelledError):
-                await mirror
+    async def serve(self) -> None:
+        await self.mirror.run()
 
     # ---- app builder ---------------------------------------------------