Remove required ANTHROPIC_API_KEY from agent deployment

- API key will be provided manually when running claude
- Allows agent pod to start without secret

Co-Authored-By: Claude Sonnet 4.5 (1M context) <noreply@anthropic.com>

k8s/agents/deployment.yaml

@@ -21,11 +21,6 @@ spec:
         image: git.fuq.tv/admin/aiworker-agent:latest
         imagePullPolicy: Always
         env:
-        - name: ANTHROPIC_API_KEY
-          valueFrom:
-            secretKeyRef:
-              name: agent-secrets
-              key: anthropic-api-key
         - name: BACKEND_URL
           value: "https://api.fuq.tv"
         - name: MCP_ENDPOINT