feat(models): implement model routing and management pages with dynamic imports

backend/tests/test_agent_schema_models.py

@@ -0,0 +1,28 @@
+# ruff: noqa: S101
+"""Tests for agent model-assignment schema normalization."""
+
+from __future__ import annotations
+
+from uuid import uuid4
+
+import pytest
+from pydantic import ValidationError
+
+from app.schemas.agents import AgentCreate
+
+
+def test_agent_create_normalizes_fallback_model_ids() -> None:
+    model_a = uuid4()
+    model_b = uuid4()
+
+    payload = AgentCreate(
+        name="Worker",
+        fallback_model_ids=[str(model_a), str(model_b), str(model_a)],
+    )
+
+    assert payload.fallback_model_ids == [model_a, model_b]
+
+
+def test_agent_create_rejects_non_list_fallback_model_ids() -> None:
+    with pytest.raises(ValidationError):
+        AgentCreate(name="Worker", fallback_model_ids="not-a-list")