add top-level routing_preferences with selection_policy and model metrics fetch

config/plano_config_schema.yaml

@@ -9,6 +9,7 @@ properties:
       - 0.1-beta
       - 0.2.0
       - v0.3.0
+      - v0.4.0
 
   agents:
     type: array
@@ -470,6 +471,51 @@ properties:
         additionalProperties: false
         required:
           - jailbreak
+  routing_preferences:
+    type: array
+    items:
+      type: object
+      properties:
+        name:
+          type: string
+        description:
+          type: string
+        models:
+          type: array
+          items:
+            type: string
+          minItems: 1
+        selection_policy:
+          type: object
+          properties:
+            prefer:
+              type: string
+              enum:
+                - cheapest
+                - fastest
+                - random
+          additionalProperties: false
+          required:
+            - prefer
+      additionalProperties: false
+      required:
+        - name
+        - description
+        - models
+        - selection_policy
+
+  model_metrics_sources:
+    type: object
+    properties:
+      url:
+        type: string
+      refresh_interval:
+        type: integer
+        minimum: 1
+    additionalProperties: false
+    required:
+      - url
+
 additionalProperties: false
 required:
   - version