Initial commit: n8n Strike API node

- Add Strike API credentials configuration
- Implement Strike node with 9 resources (Account, Balance, Currency Exchange, Deposit, Invoice, Payment, Payment Method, Payout, Rates)
- Add comprehensive operation descriptions for all resources
- Include CLAUDE.MD documentation
- Set up build configuration with TypeScript, ESLint, and Prettier

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

node_modules/es5-ext/error/is-error.js

@@ -0,0 +1,7 @@
+"use strict";
+
+var objToString = Object.prototype.toString, id = objToString.call(new Error());
+
+module.exports = function (value) {
+	return (value && (value instanceof Error || objToString.call(value) === id)) || false;
+};