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>

dist/credentials/StrikeApi.credentials.d.ts

@@ -0,0 +1,9 @@
+import type { IAuthenticateGeneric, ICredentialTestRequest, ICredentialType, INodeProperties } from 'n8n-workflow';
+export declare class StrikeApi implements ICredentialType {
+    name: string;
+    displayName: string;
+    documentationUrl: string;
+    properties: INodeProperties[];
+    authenticate: IAuthenticateGeneric;
+    test: ICredentialTestRequest;
+}