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>

nodes/Strike/StrikeApi.ts

@@ -0,0 +1,61 @@
+import type { IExecuteFunctions, IHookFunctions, ILoadOptionsFunctions } from 'n8n-workflow';
+import type { IDataObject, IHttpRequestMethods, IHttpRequestOptions } from 'n8n-workflow';
+
+export async function strikeApiRequest(
+	this: IExecuteFunctions | ILoadOptionsFunctions | IHookFunctions,
+	method: IHttpRequestMethods,
+	endpoint: string,
+	body: IDataObject = {},
+	query: IDataObject = {},
+): Promise<any> {
+	const credentials = await this.getCredentials('strikeApi');
+
+	const baseUrl = credentials.environment === 'sandbox'
+		? 'https://api.strike.me'
+		: 'https://api.strike.me';
+
+	const options: IHttpRequestOptions = {
+		method,
+		url: `${baseUrl}/v1${endpoint}`,
+		headers: {
+			'Content-Type': 'application/json',
+		},
+		body,
+		qs: query,
+		json: true,
+	};
+
+	if (Object.keys(body).length === 0) {
+		delete options.body;
+	}
+
+	if (Object.keys(query).length === 0) {
+		delete options.qs;
+	}
+
+	return this.helpers.requestWithAuthentication.call(this, 'strikeApi', options);
+}
+
+export async function strikeApiRequestAllItems(
+	this: IExecuteFunctions | ILoadOptionsFunctions,
+	method: IHttpRequestMethods,
+	endpoint: string,
+	body: IDataObject = {},
+	query: IDataObject = {},
+): Promise<any[]> {
+	const returnData: any[] = [];
+	let responseData;
+	query.$top = query.$top || 100;
+	query.$skip = 0;
+
+	do {
+		responseData = await strikeApiRequest.call(this, method, endpoint, body, query);
+		const items = responseData.items || responseData;
+		if (Array.isArray(items)) {
+			returnData.push(...items);
+		}
+		query.$skip += query.$top as number;
+	} while (responseData.items && responseData.items.length === query.$top);
+
+	return returnData;
+}