feat: add FastAPI manager API compatibility baseline

main/manager-api-fastapi/app/routers/__init__.py

@@ -0,0 +1,30 @@
+"""HTTP routers grouped by the Java business domains."""
+
+from fastapi import APIRouter
+
+
+def application_routers() -> list[APIRouter]:
+    """Return every migrated business router; imports stay explicit for coverage auditing."""
+    from app.routers.agent import router as agent_router
+    from app.routers.config import config_router
+    from app.routers.correctword import correctword_router
+    from app.routers.device import device_router
+    from app.routers.knowledge import knowledge_router
+    from app.routers.model import model_router
+    from app.routers.security import security_router
+    from app.routers.sys import sys_router
+    from app.routers.timbre import timbre_router
+    from app.routers.voiceclone import voiceclone_router
+
+    return [
+        security_router,
+        sys_router,
+        config_router,
+        agent_router,
+        device_router,
+        voiceclone_router,
+        model_router,
+        timbre_router,
+        correctword_router,
+        knowledge_router,
+    ]