- install.ps1: place exe on Desktop instead of TEMP, start with visible window
- main.rs: banner on startup, [CMD]/[OK]/[ERR] prefixed logs with HH:MM:SS timestamps
- Config: switch from JSON to TOML (config.toml in %APPDATA%\helios-remote\)
- First-run wizard prompts for Relay URL + API Key (relay_code -> api_key)
- Add chrono + toml deps to Cargo.toml