feat: Add support for multiple external metric stores

internal/metricdispatch/configSchema.go

@@ -0,0 +1,29 @@
+// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
+// All rights reserved. This file is part of cc-backend.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package metricdispatch
+
+const configSchema = `{
+  "type": "array",
+  "description": "Array of metric store configurations with scope-based routing.",
+  "items": {
+    "type": "object",
+    "properties": {
+      "scope": {
+        "description": "Scope identifier for routing metrics (e.g., cluster name, '*' for default)",
+        "type": "string"
+      },
+      "url": {
+        "description": "URL of the metric store endpoint",
+        "type": "string"
+      },
+      "token": {
+        "description": "Authentication token for the metric store",
+        "type": "string"
+      }
+    },
+    "required": ["scope", "url", "token"]
+  }
+}`