Apisix Resource Schema Validation And Error Handling

** - APISIX Model Context Protocol (MCP) server is used to bridge large language models (LLMs) with the APISIX Admin API, supporting querying and managing all resources in [Apache APISIX](https://github.com/apache/apisix).

Unique: Implements pre-submission validation layer that catches configuration errors before they reach APISIX, reducing failed API calls and providing LLMs with structured error feedback for correction. Translates low-level API errors into actionable validation messages.

vs others: Provides client-side validation before API submission unlike naive REST wrappers, reducing failed requests and enabling LLM error recovery through detailed validation feedback