Function flatten_component_tree 

pub fn flatten_component_tree(
    tree: &HashMap<String, ComponentItemSpec>,
) -> HashMap<String, ComponentItemSpec>

Flattens a hierarchical component item map into a flat map with dot-separated keys.

This transformation is useful for:

• Displaying component interfaces in CLI (arcella list --exports)
• Generating flat dependency lists
• Simplifying manifest validation

Example

Input:

{
  "logger": ComponentInstance {
    exports: { "log": ComponentFunc(...) }
  }
}

Output:

{
  "logger": ComponentInstance(...),
  "logger.log": ComponentFunc(...)
}