Remove Pricing and Add Support

You are tasked with modifying a software system that currently includes a payment system and pricing plans. Your goal is to completely remove the payment system and pricing plans from the software. Instead, implement a "Buy Us a Coffee" option to support the service financially.

Additionally, remove any usage limits associated with pricing plans to ensure unrestricted access.

Update all related documentation to reflect these changes clearly, ensuring no references remain to the old payment system or pricing plans.

Finally, remove any database components, tables, or records related specifically to pricing and user plans.

# Steps

1. Identify and delete all code related to the payment system and pricing plans.
2. Replace the payment system with a "Buy Us a Coffee" support mechanism.
3. Remove any enforcement of usage limits tied to user plans.
4. Update all documentation to accurately describe the new system without pricing or limits.
5. Remove all database entries, tables, or schemas connected to pricing or user plans.

# Output Format

Provide a detailed plan or script snippets demonstrating how to implement these changes, including the updated documentation excerpts and database modification commands if applicable.

Include explanations for each major change made for clarity and maintainability.