fix: relax MCP tool JSON Schema Zod validation to handle non-standard types (#6455)

* fix: relax MCP tool JSON Schema Zod validation to accept any type values

MCP servers may return JSON Schema with type values outside the
standard 6 types. Use z.any() for type and items fields to avoid
500 errors on /api/core/app/mcpTools/getTools.

- Remove SchemaInputValueTypeSchema enum and SchemaInputValueType
- Remove unnecessary .passthrough()
- Use plain string type for function parameters

Fixes #6451

* fix: mcp adapt

---------

Co-authored-by: c121914yu <yucongcong_test@163.com>

document/content/docs/toc.mdx

@@ -121,6 +121,7 @@ description: FastGPT 文档目录
 - [/docs/upgrading/4-14/41451](/docs/upgrading/4-14/41451)
 - [/docs/upgrading/4-14/4146](/docs/upgrading/4-14/4146)
 - [/docs/upgrading/4-14/4147](/docs/upgrading/4-14/4147)
+- [/docs/upgrading/4-14/4148](/docs/upgrading/4-14/4148)
 - [/docs/upgrading/4-8/40](/docs/upgrading/4-8/40)
 - [/docs/upgrading/4-8/41](/docs/upgrading/4-8/41)
 - [/docs/upgrading/4-8/42](/docs/upgrading/4-8/42)

document/content/docs/upgrading/4-14/4148.mdx

@@ -0,0 +1,18 @@
+---
+title: 'V4.14.8(进行中)'
+description: 'FastGPT V4.14.8 更新说明'
+---
+
+
+## 🚀 新增内容
+
+
+
+## ⚙️ 优化
+
+1. 兼容 MCP 中 JSON Schema type 类型不在枚举类型里。
+
+## 🐛 修复
+
+1. 新 SDK 兼容：连续调用同一个 MCP 服务时，多次连接导致报错。
+

document/content/docs/upgrading/4-14/meta.json

@@ -1,5 +1,5 @@
 {
   "title": "4.14.x",
   "description": "",
-  "pages": ["4147", "4146", "41451", "4145", "4144", "4143", "4142", "4141", "4140"]
+  "pages": ["4148", "4147", "4146", "41451", "4145", "4144", "4143", "4142", "4141", "4140"]
 }

document/data/doc-last-modified.json

@@ -205,4 +205,4 @@
   "document/content/docs/use-cases/external-integration/openapi.mdx": "2026-02-12T18:45:30+08:00",
   "document/content/docs/use-cases/external-integration/wecom.mdx": "2025-12-10T20:07:05+08:00",
   "document/content/docs/use-cases/index.mdx": "2025-07-24T14:23:04+08:00"
-}
+}