Add ModbusSettings with host, port, slave_id, and timeout_secs fields.
Add RelaySettings with label_max_length field.
Integrate both into Settings struct and load from settings/base.yaml
with test Modbus TCP configuration.
Ref: T003 (specs/001-modbus-relay-control)
Switch from Modbus RTU over TCP to native Modbus TCP based on hardware
testing. Uses standard MBAP header (no CRC16), port 502, and TCP-only
tokio-modbus feature for simpler implementation.
Updated: Cargo.toml, plan.md, research.md, tasks.md
Adds tokio-modbus 0.17.0 for Modbus RTU over TCP communication,
sqlx with runtime-tokio and sqlite features for async database operations,
mockall 0.13 for trait mocking in tests, and async-trait 0.1 for async trait support.
Ref: T001 (specs/001-modbus-relay-control)
Initialize project documentation structure:
- Add CLAUDE.md with development guidelines and architecture principles
- Add project constitution (v1.1.0) with hexagonal architecture and SOLID principles
- Add MCP server configuration for Context7 integration
Feature specification (001-modbus-relay-control):
- Complete feature spec for web-based Modbus relay control system
- Implementation plan with TDD approach using SQLx for persistence
- Type-driven development design for domain types
- Technical decisions document (SQLx over rusqlite, SQLite persistence)
- Detailed task breakdown (94 tasks across 8 phases)
- Specification templates for future features
Documentation:
- Modbus POE ETH Relay hardware documentation
- Modbus Application Protocol specification (PDF)
Project uses SQLx for compile-time verified SQL queries, aligned with
type-driven development principles.
