fix(go.sum): update ResolveSpec dependency to v1.0.87

vendor/github.com/modelcontextprotocol/go-sdk/mcp/prompt.go

@@ -0,0 +1,17 @@
+// Copyright 2025 The Go MCP SDK Authors. All rights reserved.
+// Use of this source code is governed by an MIT-style
+// license that can be found in the LICENSE file.
+
+package mcp
+
+import (
+	"context"
+)
+
+// A PromptHandler handles a call to prompts/get.
+type PromptHandler func(context.Context, *GetPromptRequest) (*GetPromptResult, error)
+
+type serverPrompt struct {
+	prompt  *Prompt
+	handler PromptHandler
+}