feat(agentscope): add memory system and automation job support

- Add consumer_registry and pipeline_registry for runtime orchestration
- Add Visibility schema for message filtering
- Add PipelineSpec for agent pipeline configuration
- Add automation job models and configuration
- Remove memory_prompt.py (consolidated into memory system)
- Update runtime components: context_loader, context_service, orchestrator, runner, tasks
- Update toolkit: tool_config, tool_middleware, custom tools (calendar, user_lookup)
- Add auth_helpers and calendar_domain utilities
- Add system_agents.yaml configuration

backend/tests/unit/database/test_automation_job_migration_contract.py

@@ -0,0 +1,18 @@
+from __future__ import annotations
+
+from pathlib import Path
+
+
+def test_memory_automation_job_trigger_exists_in_0004_migration() -> None:
+    migration = (
+        Path(__file__).resolve().parents[3]
+        / "alembic"
+        / "versions"
+        / "20260319_0004_automation_job_config_for_memory.py"
+    )
+    content = migration.read_text(encoding="utf-8")
+
+    assert "INSERT INTO public.automation_jobs" in content
+    assert "'agent_type', 'memory'" in content
+    assert "ux_automation_jobs_owner_memory_active" in content
+    assert "input_template" in content