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/collections/Workflow.ts

@@ -89,7 +89,7 @@ export const createWorkflowCollection: <T extends string>(options: WorkflowsPlug
           type: 'text',
           admin: {
             condition: (_, siblingData) => siblingData?.type === 'webhook-trigger',
-            description: 'URL path for the webhook (e.g., "my-webhook"). Full URL will be /api/workflows/webhook/my-webhook',
+            description: 'URL path for the webhook (e.g., "my-webhook"). Full URL will be /api/workflows-webhook/my-webhook',
           },
           validate: (value: any, {siblingData}: any) => {
             if (siblingData?.type === 'webhook-trigger' && !value) {
@@ -172,7 +172,7 @@ export const createWorkflowCollection: <T extends string>(options: WorkflowsPlug
           name: 'condition',
           type: 'text',
           admin: {
-            description: 'JSONPath expression that must evaluate to true for this trigger to execute the workflow (e.g., "$.doc.status == \'published\'")'
+            description: 'JSONPath expression that must evaluate to true for this trigger to execute the workflow (e.g., "$.trigger.doc.status == \'published\'")'
           },
           required: false
         },