## Succeed State

* ✅ Terminal state that stops execution successfully
* ✅ Always returns (output, None, None) - no next state, no error
* ✅ Supports InputPath and OutputPath for data filtering
* ✅ Cannot have Next, End, or ResultPath fields
* ✅ Simple pass-through with optional path processing
* ✅ Primary use: target for Choice state branches
* ✅ 35+ test cases covering all scenarios

### Test Details
#### Comprehensive test suite with 35+ tests covering:

* ✅ Initialization with all field combinations
* ✅ Validation tests (rejects Next/End/ResultPath fields)
* ✅ Execute with no paths (simple pass-through)
* ✅ Execute with InputPath only
* ✅ Execute with OutputPath only
* ✅ Execute with both paths (data transformation)
* ✅ Execute with None input and empty input
* ✅ Execute with different input types (string, int, float, bool, list, dict)
* ✅ Path processing error handling
* ✅ JSON serialization (to_dict, to_json with/without indentation)
* ✅ Default processor fallback
* ✅ Integration tests with real JSONPath processor
* ✅ Concurrent execution (10 parallel tasks)
* ✅ String representations (str and repr)
* ✅ Inheritance verification from BaseState

### Key Features:

* ✅ Matches Go implementation with Pythonic patterns
* ✅ Raises StateError exceptions (no error tuples)
* ✅ Async/await execution pattern
* ✅ Strict validation enforcing AWS Step Functions spec
* ✅ Dependency injection for path processors
* ✅ Complete test coverage with mocked and real processors
