chore: prepare yanting monorepo handoff

report-notebooklm-api/app/routers/institutions.py

@@ -0,0 +1,23 @@
+from fastapi import APIRouter, Depends, Query
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.db import get_session
+from app.services.catalog import CatalogService
+
+router = APIRouter()
+
+
+@router.get("/institutions")
+async def institutions(
+    topic: str | None = None,
+    source_tier: str | None = None,
+    page_size: int = Query(20, ge=1, le=50),
+    session: AsyncSession = Depends(get_session),
+) -> dict:
+    return await CatalogService(session).institutions(topic=topic, source_tier=source_tier, page_size=page_size)
+
+
+@router.get("/institutions/{institution_id}")
+async def institution_detail(institution_id: str, session: AsyncSession = Depends(get_session)) -> dict:
+    return await CatalogService(session).institution_detail(institution_id)
+