refactor mcp

app/controllers/mcp/protocol_controller.rb

@@ -0,0 +1,50 @@
+# frozen_string_literal: true
+
+module Mcp
+  class ProtocolController < McpBaseController
+    skip_authorization_check
+
+    def ok
+      head :ok
+    end
+
+    def initialize_request
+      render_result(
+        protocolVersion: '2025-11-25',
+        serverInfo: {
+          name: 'DocuSeal',
+          version: Docuseal.version.to_s
+        },
+        capabilities: {
+          tools: {
+            listChanged: false
+          }
+        }
+      )
+    end
+
+    def initialized_notification
+      head :accepted
+    end
+
+    def ping
+      render_result({})
+    end
+
+    def tools_list
+      render_result(tools: McpController::TOOLS)
+    end
+
+    def method_not_found
+      render_error(-32_601, "Method not found: #{mcp_body['method']}", id: mcp_body['id'])
+    end
+
+    def tool_not_found
+      render_error(-32_602, "Unknown tool: #{mcp_body.dig('params', 'name')}", id: mcp_body['id'])
+    end
+
+    def parse_error
+      render_error(-32_700, 'Parse error', status: :bad_request)
+    end
+  end
+end