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/undertaker/lib/helpers/buildTree.js

@@ -0,0 +1,29 @@
+'use strict';
+
+var map = require('collection-map');
+
+var metadata = require('./metadata');
+
+function buildTree(tasks) {
+  return map(tasks, function(task) {
+    var meta = metadata.get(task);
+    if (meta) {
+      return meta.tree;
+    }
+
+    var name = task.displayName || task.name || '<anonymous>';
+    meta = {
+      name: name,
+      tree: {
+        label: name,
+        type: 'function',
+        nodes: [],
+      },
+    };
+
+    metadata.set(task, meta);
+    return meta.tree;
+  });
+}
+
+module.exports = buildTree;