Devices v2 - complete revamp.

[rustyeddy]

No description provided.

[Copilot]

Pull request overview

This PR represents a complete architectural overhaul of the Otto IoT framework, introducing a new type-safe device abstraction layer with generics and redesigning the messaging system around a cleaner Registry pattern.

Key changes:

• Introduced a new rules/ package for business logic (toggle, follow patterns)
• Completely redesigned messenger/ package with typed wiring and codec abstraction
• Replaced singleton patterns with dependency injection via Registry
• Added MQTT client abstraction with Paho implementation
• Moved old implementation to _archive/ directory

Reviewed changes

Copilot reviewed 17 out of 37 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
rules/rules.go	New rule runner for concurrent execution of device rules
rules/toggle_on_rising.go	Button-to-relay toggle rule with debouncing
rules/follow.go	Generic source-to-sink following rule
messenger/registry.go	Central registry for device management and MQTT wiring
messenger/wire_typed.go	Type-safe device wiring with codec support
messenger/mqtt_client.go	MQTT client interface abstraction
messenger/mqtt/paho.go	Paho MQTT client implementation with reconnect support
messenger/topics.go	Simplified topic scheme implementation
messenger/payloads.go	Status and metadata payload structures
messenger/messenger.go	Simplified messenger with subscription management
messenger/codec/codec.go	Codec interface for type conversion
messenger/codec/json.go	JSON codec implementation
examples/demo/main.go	Comprehensive demo showing new architecture
examples/logging/main.go	Logging configuration demonstration
cmd/otto/main.go	Updated main entry point (incomplete)
go.mod	Updated Go version and dependencies
go.sum	Updated dependency checksums