Refactored the `DummyLlmService` to `DummyIntentService` across the codebase for clarity and consistency. Updated variable names, method calls, and documentation to align with this change. This improves code readability and better reflects the service's purpose.
Introduced the `NestedManifoldRegion` class to enable embedding of `WorkflowFunctionManifold` inside regions, allowing hierarchical workflows. Updated `bin.js` to demonstrate the new functionality and adjusted `lib.js` for nested region navigation and execution logic. Updated `package.json` to specify "type": "module" for ES module support.
