feat(distill,conversations,scheduler,api,ui): close deep chats with a distiller fork, digest and index, idle and weekly state jobs

src/beaver_gateway/core/registry.py

@@ -17,6 +17,7 @@ if TYPE_CHECKING:
 
     from beaver_gateway.agents.base import BaseAgent
     from beaver_gateway.core.conversations import ConversationTexts
+    from beaver_gateway.core.distill import Distiller
     from beaver_gateway.core.rotation import RotationPolicy
     from beaver_gateway.core.scheduler import Budget, Job
     from beaver_gateway.core.watch import VaultWatch
@@ -95,6 +96,8 @@ class Gateway:
     """Vault watcher feeding the envelope (§3.5, §4.6); ``None`` = no vault block."""
     budget: Budget | None = None
     """Subscription window past which non-critical jobs wait (§4.5)."""
+    distiller: Distiller | None = None
+    """Who closes deep chats and where the digests and the index live (§8.4)."""
     tz: str = "UTC"
     """Local zone for the envelope clock and the rotation hour."""
     host: str = "0.0.0.0"  # noqa: S104