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/decamelize/index.js

@@ -0,0 +1,13 @@
+'use strict';
+module.exports = function (str, sep) {
+	if (typeof str !== 'string') {
+		throw new TypeError('Expected a string');
+	}
+
+	sep = typeof sep === 'undefined' ? '_' : sep;
+
+	return str
+		.replace(/([a-z\d])([A-Z])/g, '$1' + sep + '$2')
+		.replace(/([A-Z]+)([A-Z][a-z\d]+)/g, '$1' + sep + '$2')
+		.toLowerCase();
+};