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/object/validate-stringifiable.js

@@ -0,0 +1,12 @@
+"use strict";
+
+var isCallable = require("./is-callable");
+
+module.exports = function (stringifiable) {
+	try {
+		if (stringifiable && isCallable(stringifiable.toString)) return stringifiable.toString();
+		return String(stringifiable);
+	} catch (e) {
+		throw new TypeError("Passed argument cannot be stringifed");
+	}
+};