Add token usage estimation structure for operations

[erenster2000]

Description

Add a structure to the godot-mcp project that calculates and displays the estimated token consumption for operations performed on the project.

Purpose

This feature will help developers and users understand the token cost implications of various operations before executing them. This is particularly useful for operations that interact with AI models or language processing services where token consumption directly impacts cost.

Expected Functionality

• Create a token estimation system that can calculate estimated token usage for different types of operations
• Display token consumption estimates in a clear and accessible format
• Support different operation types with appropriate token calculation logic
• Provide accurate estimations based on operation complexity and parameters

Benefits

• Better cost management and budgeting for token-based operations
• Increased transparency in resource consumption
• Helps users make informed decisions about which operations to perform
• Can serve as a foundation for cost optimization strategies

[erenster2000]

I'd be happy to work on this myself — is this an approach you'd be open to? Happy to discuss the calculation method (rough char-based estimate vs. a real tokenizer like tiktoken)