feat(registry): añade factories para registry y policy_store

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

core/src/agentforge_core/registry/factory.py

@@ -0,0 +1,17 @@
+"""Factories para AgentRegistry y PolicyStore basados en Settings."""
+
+from __future__ import annotations
+
+from agentforge_core.config import Settings
+from agentforge_core.registry.policy_store import FileSystemPolicyStore
+from agentforge_core.registry.repository import FileSystemAgentRegistry
+
+
+def build_agent_registry(settings: Settings) -> FileSystemAgentRegistry:
+    """Construye el registry de agentes apuntando a ``settings.agents_dir``."""
+    return FileSystemAgentRegistry(settings.agents_dir)
+
+
+def build_policy_store(settings: Settings) -> FileSystemPolicyStore:
+    """Construye el store de políticas apuntando a ``settings.policies_dir``."""
+    return FileSystemPolicyStore(settings.policies_dir)