- Introduced TrainLateness enum to represent on-time, early, late (with minutes), and unknown states, including description text, color, and formatting logic.
- Replaced TrainStatusRow.status String with TrainLateness and update ContentView to render a colored status pill and to return TrainLateness from isOnTime.
- This update adds ISO date/time helpers for Amtrak timestamps, refactors the train table to show arrival time, status, and track details, and tracks the current station context in the UI.
- It also hardens station status decoding with a safe fallback to Unknown and simplifies the row model to match the new display.
Added richer station metadata and status handling to match the Amtrak API payload. This commit introduces new station fields for name, timezone, schedule/actual timings, platform, and status, along with extra train row properties for origin and arrival/departure details used by the UI.
