Update linting configurations and documentation

Merge branch 'arterm_refactor_20251609' into marat_tests_app_ng_modular

Update regex patterns for phone and email masks in tools_text_attribute.py

Refactor attribute schemas and utility functions for improved consistency

Enhance API operation handling with result model validation

Refactor API operation handling in attribute management

Refactor attribute handling to remove unused get functions

Fix typos and update response mapping in attribute handling

Enhance attribute response processing with mapping support

Refactor attribute response handling to utilize centralized key removal mapping

Add non-empty string validation for various attribute schemas

Refactor attribute response handling in tools

Add scripts to fix import issues in tool files and enhance testing functionality

Implement reorganization of agent modules into next-generation and legacy structures. Create test scripts to verify import functionality and directory structure, ensuring all modules are accessible and operational. Update import statements across the codebase to reflect the new organization.