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/string/#/count.js

@@ -0,0 +1,15 @@
+"use strict";
+
+var ensureString = require("../../object/validate-stringifiable-value");
+
+module.exports = function (search) {
+	var string = ensureString(this), count = 0, index = 0;
+
+	search = ensureString(search);
+	if (!search) throw new TypeError("Search string cannot be empty");
+	while ((index = string.indexOf(search, index)) !== -1) {
+		++count;
+		index += search.length;
+	}
+	return count;
+};