Remove all references to MaxCapacity/MinCapacity from docs, tests, and code

[coderabbitai]

Context

During the review of PR #206 (#206), it was identified that the codebase contains references to max_capacity/min_capacity and MaxCapacity/MinCapacity that do not match the actual TemoaModel attributes.

The actual TemoaModel uses limit_capacity and limit_new_capacity instead.

Tasks

• Remove unused max_capacity and min_capacity mock attributes from tests/test_pricing_check.py
• Search for and remove all mentions of MaxCapacity and MinCapacity from documentation
• Search for and remove all mentions of max_capacity and min_capacity from tests
• Audit code for any remaining references to these deprecated constraint names
• Ensure all references use the correct attribute names: limit_capacity and limit_new_capacity

Reference

• Original comment: Documentation Modernization - Phase 1 #206 (comment)
• Requested by: @ParticularlyPythonicBS

This issue was identified as necessary but out of scope for PR #206.