refactor: Remove config file

[alecron]

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[Copilot]

Pull Request Overview

This PR refactors the application to remove direct config file access and introduces an AppConfig class for centralized configuration management. The changes improve code organization by:

• Replacing dictionary-based config access with a type-safe AppConfig class
• Centralizing logging configuration through the config class
• Injecting dependencies through constructors instead of global variables

Reviewed Changes

Copilot reviewed 11 out of 12 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
utils/app_config.py	Introduces AppConfig class to encapsulate configuration access
utils/sysdig/client_config.py	Updates logging configuration to use AppConfig
utils/query_helpers.py	Adds robust response parsing with error handling
utils/middleware/auth.py	Refactors to use dependency injection with AppConfig
utils/mcp_server.py	Updates to use AppConfig methods and removes tool filtering
tools/*/tool.py	All tool classes now accept AppConfig in constructor
main.py	Reorders initialization and uses AppConfig for logging

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