Use the lib instead of the gem

Author: atesgoral

lib/mcp.rb

@@ -1,5 +1,6 @@
 # frozen_string_literal: true
 
+require_relative "json_rpc_handler"
 require_relative "mcp/configuration"
 require_relative "mcp/content"
 require_relative "mcp/instrumentation"

lib/mcp/server.rb

@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-require "json_rpc_handler"
+require_relative "../json_rpc_handler"
 require_relative "instrumentation"
 require_relative "methods"
 

mcp.gemspec

@@ -29,6 +29,5 @@ Gem::Specification.new do |spec|
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
 
-  spec.add_dependency("json_rpc_handler", "~> 0.1")
   spec.add_dependency("json-schema", ">= 4.1")
 end