feat(MCP Server Trigger Node): Add MCP Server Trigger node to expose tools to MCP clients (#14403)

Co-authored-by: कारतोफ्फेलस्क्रिप्ट™ <aditya@netroy.in>

packages/nodes-base/credentials/HttpBearerAuth.credentials.ts

@@ -0,0 +1,43 @@
+import type { IAuthenticateGeneric, ICredentialType, INodeProperties, Icon } from 'n8n-workflow';
+
+// eslint-disable-next-line n8n-nodes-base/cred-class-name-unsuffixed
+export class HttpBearerAuth implements ICredentialType {
+	// eslint-disable-next-line n8n-nodes-base/cred-class-field-name-unsuffixed
+	name = 'httpBearerAuth';
+
+	displayName = 'Bearer Auth';
+
+	documentationUrl = 'httpRequest';
+
+	genericAuth = true;
+
+	icon: Icon = 'node:n8n-nodes-base.httpRequest';
+
+	properties: INodeProperties[] = [
+		{
+			displayName: 'Bearer Token',
+			name: 'token',
+			type: 'string',
+			typeOptions: {
+				password: true,
+			},
+			default: '',
+		},
+		{
+			displayName:
+				'This credential uses the "Authorization" header. To use a custom header, use a "Custom Auth" credential instead',
+			name: 'useCustomAuth',
+			type: 'notice',
+			default: '',
+		},
+	];
+
+	authenticate: IAuthenticateGeneric = {
+		type: 'generic',
+		properties: {
+			headers: {
+				Authorization: 'Bearer ={{$credentials.token}}',
+			},
+		},
+	};
+}