Revert server.schema.json changes - let PR #803 handle schema versioning

PR #803 decouples server.schema.json versioning from openapi.yaml by
using a draft URL scheme. This PR should only update the OpenAPI spec
endpoints and version, not the server.schema.json.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: tadasant

docs/reference/server-json/server.schema.json

@@ -1,6 +1,6 @@
 {
   "$comment": "This file is auto-generated from docs/reference/api/openapi.yaml. Do not edit manually. Run 'make generate-schema' to update.",
-  "$id": "https://static.modelcontextprotocol.io/schemas/2025-12-01/server.schema.json",
+  "$id": "https://static.modelcontextprotocol.io/schemas/2025-10-17/server.schema.json",
   "$ref": "#/definitions/ServerDetail",
   "$schema": "http://json-schema.org/draft-07/schema#",
   "definitions": {