Refactor MQTT Observer Architecture And Services

[Dumdart]

Summary

Refactor the Smart Home Observer around clearer application, domain, infrastructure, processor, and service boundaries. Improve MQTT configuration, message handling, repository access, dependency wiring, and documentation.

Changes

Bug Fixes

• Improve MQTT client callbacks, state handling, and repository interactions.
• Clarify configuration loading through environment-based settings.

Features

• Add structured MQTT message and observer state models.
• Introduce MQTT message processor and observer model service abstractions.
• Add topic management and chicken door repository integrations.

Refactoring

• Add application service container and dependency registration.
• Separate MQTT interfaces, infrastructure adapters, processors, and domain services.
• Update the application entry point and package exports.

Improvements

• Update .env.example and README usage guidance.
• Expand automated coverage for MQTT behavior, processing, services, repositories, dependency injection, and topics.

Testing

• Added and updated unit tests covering the refactored MQTT, observer, repository, service, and dependency-container components.