refactor: unify AI capabilities and workspace integration

backend/tests/test_catalog.py

@@ -268,8 +268,12 @@ async def test_dynamic_platform_scopes_and_validation(catalog):
     assert (await sync(catalog, scope={**SCOPE, "region": "IND", "universe": "TOP500"}))["status"] == "completed"
     invalid = await client.post(BASE + "/sync-jobs", json={"scope": {**SCOPE, "region": "IND"}})
     assert invalid.status_code == 422
-    from app.ai.tools import EmptyArgs, read_tool
-    ai = await read_tool(None, "get_catalog_scopes", EmptyArgs(), runner.client)
+    from app.ai.capabilities import ToolContext
+    from app.ai.tools import CAPABILITIES
+    from app.business import Business
+
+    async with runner.sessions() as db:
+        ai = await CAPABILITIES["get_catalog_scopes"].invoke(ToolContext(Business(db), runner.client), {})
     assert ai["instrument_options"] == options["instrument_options"]
     assert ai["_meta"]["source"] == "worldquant_platform"
     runner.client.disconnect()