Bug: Unused project_id Parameter in get_label_studio_task_annotations_tool

## Tool: get_label_studio_task_annotations_tool

https://github.com/HumanSignal/label-studio-mcp-server/blob/9505071cbe28bf3f4af47ad1ea55e2929ace59fc/label_studio_mcp/mcp_server.py#L138-L161

## Tool: get_label_studio_task_data_tool

https://github.com/HumanSignal/label-studio-mcp-server/blob/9505071cbe28bf3f4af47ad1ea55e2929ace59fc/label_studio_mcp/mcp_server.py#L127-L136

## Description

Both get_label_studio_task_annotations_tool and get_label_studio_task_data_tool accept project_id as a parameter, but it is not used in their implementations.

This could confuse MCP agents or users who assume the project context is being validated or applied internally.

If project_id is not required, it may be better to remove it. Otherwise, the implementation should incorporate it appropriately.

Could you confirm whether this is intentional?