core: Policy, Pflege-Agent (HITL), Healer, Lifecycle-Pipeline, Graduierung + Konfiguration

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

core/src/knaster/registry.py

@@ -45,6 +45,9 @@ class Slot(BaseModel):
     set_by: str | None = None
     calibrated_context: int | None = None
     base_model_override: str | None = None
+    canary_model: str | None = None
+    canary_share: float = 0.0
+    canary_cluster: str | None = None
 
     @property
     def name(self) -> str:
@@ -104,6 +107,9 @@ class Registry:
             set_by=state.get("set_by"),
             calibrated_context=state.get("effective_context"),
             base_model_override=state.get("base_model"),
+            canary_model=state.get("canary_model"),
+            canary_share=state.get("canary_share") or 0.0,
+            canary_cluster=state.get("canary_cluster"),
         )
 
     def slots(self) -> list[Slot]:
@@ -127,6 +133,11 @@ class Registry:
     def set_base_model(self, name: str, base_model: str | None) -> None:
         self.store.set_slot_state(name, base_model=base_model)
 
+    def set_canary(self, name: str, model: str | None, share: float = 0.0, cluster: str | None = None) -> None:
+        """Leitet `share` des Stufe-1-Verkehrs (optional nur eines Clusters) auf ein Kandidatenmodell."""
+        self.store.set_slot_state(name, canary_model=model, canary_share=share if model else 0.0,
+                                  canary_cluster=cluster if model else None)
+
     # --- Adapter ----------------------------------------------------------------------------
     def adapters(self) -> list[AdapterSpec]:
         merged = {n: a.model_copy() for n, a in self._adapters.items()}