refactor(router): restructure

app/router/__init__.py

@@ -2,23 +2,8 @@ from __future__ import annotations
 
 from app.signalr import signalr_router as signalr_router
 
-from . import (  # pyright: ignore[reportUnusedImport]  # noqa: F401
-    beatmap,
-    beatmapset,
-    me,
-    misc,
-    relationship,
-    room,
-    score,
-    user,
-)
-from .api_router import router as api_router
 from .auth import router as auth_router
 from .fetcher import fetcher_router as fetcher_router
+from .v2 import api_v2_router as api_v2_router
 
-__all__ = [
-    "api_router",
-    "auth_router",
-    "fetcher_router",
-    "signalr_router",
-]
+__all__ = ["api_v2_router", "auth_router", "fetcher_router", "signalr_router"]