feat: added helpers methods for Workflow and WorkflowRun

[ArtemIstomin-sm]

Summary

• WorkflowRun Helper Methods: Added helper methods to WorkflowRun struct for status checking and task management

  • Status check methods: IsRunning(), IsPaused(), IsFailed(), IsCompleted(), IsTimedOut(), IsTerminated()
  • Task management methods: GetFailedTasks(), GetCompletedTasks(), GetTasksByStatus(), GetTaskByReferenceName()

• Workflow Helper Methods: Enhanced Workflow struct with additional helper methods

  • Status check methods: IsRunning(), IsPaused(), IsFailed(), IsCompleted(), IsTimedOut(), IsTerminated()
  • Task management methods: GetInProgressTasks(), GetFailedTasks(), GetCompletedTasks(), GetScheduledTasks(), GetTasksByStatus(), GetTaskByReferenceName()

• Documentation Updates: Enhanced docs/workflow_sdk.md with documentation

  • Added WorkflowRun Helper Methods section with status check and task management examples
  • Added Workflow Monitoring Methods section covering WaitForWorkflowCompletionUntilTimeout() and MonitorExecution()
  • Added Workflow Helper Methods section with additional helper methods for Workflow struct
  • Added GetWorkflowWithContext() method example in workflow execution flow

• Test Coverage: Created comprehensive test suite for helper methods

• Temporarily disabled Revive lint to check naming until the next major release.