deploy: Dockerfile, Compose pro Rolle, LiteLLM, Prometheus/Alertmanager, Canary-Prober, n8n-Workflows

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

core/src/knaster/settings.py

@@ -35,7 +35,9 @@ class Settings:
     proxmox_token_secret: str = ""
     notify_webhook_url: str = ""
     job_webhook_url: str = ""
+    webhook_auth: str = ""  # Wert des Authorization-Headers für ausgehende Webhooks (n8n Header Auth)
     request_timeout: float = 120.0
+    canary_interval: float = 60.0  # 0 = Prober aus
 
     @classmethod
     def from_env(cls) -> Settings:
@@ -60,5 +62,7 @@ class Settings:
             proxmox_token_secret=env.get("PROXMOX_TOKEN_SECRET", ""),
             notify_webhook_url=env.get("NOTIFY_WEBHOOK_URL", ""),
             job_webhook_url=env.get("KNASTER_JOB_WEBHOOK_URL", ""),
+            webhook_auth=env.get("KNASTER_WEBHOOK_AUTH", ""),
             request_timeout=float(env.get("KNASTER_REQUEST_TIMEOUT", base.request_timeout)),
+            canary_interval=float(env.get("KNASTER_CANARY_INTERVAL", base.canary_interval)),
         )