add middleware config (github#253)

Author: a-s-g93

servers/neo4j-cloud-aura-api/server.yaml

@@ -35,6 +35,12 @@ config:
     - name: NEO4J_MCP_SERVER_PATH
       example: /mcp/
       value: '{{neo4j-cloud-aura-api.server_path}}'
+    - name: NEO4J_MCP_SERVER_ALLOW_ORIGINS
+      example: "example.com,www.example.com"
+      value: '{{neo4j-cloud-aura-api.server_allow_origins}}'
+    - name: NEO4J_MCP_SERVER_ALLOWED_HOSTS
+      example: "localhost,127.0.0.1"
+      value: '{{neo4j-cloud-aura-api.server_allowed_hosts}}'
   parameters:
     type: object
     properties:
@@ -48,6 +54,10 @@ config:
         type: string
       server_path:
         type: string
+      server_allow_origins:
+        type: string
+      server_allowed_hosts:
+        type: string
     required:
       - client_id
 requirement: neo4j