more internal polish, resilient workers

crates/executor/src/lib.rs

@@ -4,19 +4,30 @@
 //! The actual executor service is a binary in main.rs.
 
 pub mod completion_listener;
+pub mod dead_letter_handler;
 pub mod enforcement_processor;
 pub mod event_processor;
+pub mod execution_manager;
 pub mod inquiry_handler;
 pub mod policy_enforcer;
 pub mod queue_manager;
+pub mod retry_manager;
+pub mod scheduler;
+pub mod service;
+pub mod timeout_monitor;
+pub mod worker_health;
 pub mod workflow;
 
 // Re-export commonly used types for convenience
+pub use dead_letter_handler::{create_dlq_consumer_config, DeadLetterHandler};
 pub use inquiry_handler::{InquiryHandler, InquiryRequest, INQUIRY_RESULT_KEY};
 pub use policy_enforcer::{
     ExecutionPolicy, PolicyEnforcer, PolicyScope, PolicyViolation, RateLimit,
 };
 pub use queue_manager::{ExecutionQueueManager, QueueConfig, QueueStats};
+pub use retry_manager::{RetryAnalysis, RetryConfig, RetryManager, RetryReason};
+pub use timeout_monitor::{ExecutionTimeoutMonitor, TimeoutMonitorConfig};
+pub use worker_health::{HealthMetrics, HealthProbeConfig, HealthStatus, WorkerHealthProbe};
 pub use workflow::{
     parse_workflow_yaml, BackoffStrategy, ParseError, TemplateEngine, VariableContext,
     WorkflowDefinition, WorkflowValidator,