Reevaluate CompletionConfig Presets

[yaythomas]

Context

GitHub Reference: config.py#L47

Review and update CompletionConfig presets for first_successful, all_completed, and all_successful to ensure they match expected behavior and service capabilities.

This is currently not implemented in TypeScript.

Technical Requirements

• Review current preset implementations
• Validate against service behavior
• Update presets if needed
• Ensure consistency with TypeScript SDK

Implementation Details

• File: src/aws_durable_execution_sdk_python/config.py
• Line: Around line 47
• Presets to Review:
  • first_successful: Complete when first operation succeeds
  • all_completed: Complete when all operations finish (success or failure)
  • all_successful: Complete when all operations succeed

@dataclass(frozen=True)
class CompletionConfig:
    @classmethod
    def first_successful(cls) -> CompletionConfig:
        """Complete when first operation succeeds."""
        return cls(
            completion_type="FIRST_SUCCESSFUL",
            min_successful=1,
            fail_on_first_error=False
        )
    
    @classmethod
    def all_completed(cls) -> CompletionConfig:
        """Complete when all operations finish."""
        return cls(
            completion_type="ALL_COMPLETED",
            min_successful=None,
            fail_on_first_error=False
        )

Acceptance Criteria

• All presets match expected behavior
• Presets are consistent with service capabilities
• Documentation clearly explains each preset
• Tests validate preset behavior
• Alignment with TypeScript SDK confirmed

Priority: LOW
Estimated Effort: 0.5 days