Fix critical issues and enhance PayloadCMS automation plugin

## Critical Fixes Implemented:

### 1. Hook Execution Reliability (src/plugin/index.ts)
- Replaced fragile global variable pattern with proper dependency injection
- Added structured executor registry with initialization tracking
- Implemented proper logging using PayloadCMS logger instead of console
- Added graceful handling for executor unavailability scenarios

### 2. Error Handling & Workflow Run Tracking
- Fixed error swallowing in hook execution
- Added createFailedWorkflowRun() to track hook execution failures
- Improved error categorization and user-friendly error messages
- Enhanced workflow run status tracking with detailed context

### 3. Enhanced HTTP Step (src/steps/)
- Complete rewrite of HTTP request handler with enterprise features:
  - Multiple authentication methods (Bearer, Basic Auth, API Key)
  - Configurable timeouts and retry logic with exponential backoff
  - Comprehensive error handling for different failure scenarios
  - Support for all HTTP methods with proper request/response parsing
  - Request duration tracking and detailed logging

### 4. User Experience Improvements
- Added StatusCell component with visual status indicators
- Created ErrorDisplay component with user-friendly error explanations
- Added WorkflowExecutionStatus component for real-time execution monitoring
- Enhanced collections with better error display and conditional fields

### 5. Comprehensive Testing Suite
- Added hook-reliability.spec.ts: Tests executor availability and concurrent execution
- Added error-scenarios.spec.ts: Tests timeout, network, validation, and HTTP errors
- Added webhook-triggers.spec.ts: Tests webhook endpoints, conditions, and concurrent requests
- Fixed existing test to work with enhanced HTTP step schema

## Technical Improvements:
- Proper TypeScript interfaces for all new components
- Safe serialization handling for circular references
- Comprehensive logging with structured data
- Modular component architecture with proper exports
- Enhanced collection schemas with conditional field visibility

## Impact:
- Eliminates silent workflow execution failures
- Provides clear error visibility for users
- Makes HTTP requests production-ready with auth and retry capabilities
- Significantly improves debugging and monitoring experience
- Adds comprehensive test coverage for reliability

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

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

dev/simple-trigger.spec.ts

@@ -73,17 +73,15 @@ describe('Workflow Trigger Test', () => {
           {
             name: 'log-post',
             step: 'http-request-step',
-            input: {
-              url: 'https://httpbin.org/post',
-              method: 'POST',
-              headers: {
-                'Content-Type': 'application/json'
-              },
-              body: {
-                message: 'Post created',
-                postId: '$.trigger.doc.id',
-                postTitle: '$.trigger.doc.content'
-              }
+            url: 'https://httpbin.org/post',
+            method: 'POST',
+            headers: {
+              'Content-Type': 'application/json'
+            },
+            body: {
+              message: 'Post created',
+              postId: '$.trigger.doc.id',
+              postTitle: '$.trigger.doc.content'
             }
           }
         ]