Implement independent error storage system and comprehensive improvements

Major Features:
• Add persistent error tracking for timeout/network failures that bypasses PayloadCMS output limitations
• Implement smart error classification (timeout, DNS, connection, network) with duration-based detection
• Add comprehensive test infrastructure with MongoDB in-memory testing and enhanced mocking
• Fix HTTP request handler error preservation with detailed context storage
• Add independent execution tracking with success/failure status and duration metrics

Technical Improvements:
• Update JSONPath documentation to use correct $.trigger.doc syntax across all step types
• Fix PayloadCMS job execution to use runByID instead of run() for reliable task processing
• Add enhanced HTTP error handling that preserves outputs for 4xx/5xx status codes
• Implement proper nock configuration with undici for Node.js 22 fetch interception
• Add comprehensive unit tests for WorkflowExecutor with mocked PayloadCMS instances

Developer Experience:
• Add detailed error information in workflow context with URL, method, timeout, attempts
• Update README with HTTP error handling patterns and enhanced error tracking examples
• Add test helpers and setup infrastructure for reliable integration testing
• Fix workflow step validation and JSONPath field descriptions

Breaking Changes: None - fully backward compatible

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/steps/delete-document.ts

@@ -18,14 +18,14 @@ export const DeleteDocumentStepTask = {
       name: 'id',
       type: 'text',
       admin: {
-        description: 'The ID of a specific document to delete (leave empty to delete multiple)'
+        description: 'The ID of a specific document to delete. Use JSONPath (e.g., "$.trigger.doc.id"). Leave empty to delete multiple.'
       }
     },
     {
       name: 'where',
       type: 'json',
       admin: {
-        description: 'Query conditions to find documents to delete (used when ID is not provided)'
+        description: 'Query conditions to find documents to delete when ID is not provided. Use JSONPath in values (e.g., {"author": "$.trigger.doc.author"})'
       }
     }
   ],