# Changelog

## Unreleased

### Changed

- Optimized the HTML dashboard data flow by splitting board loading and task detail loading.
- Kept the public `/api/tasks/*` API unchanged.
- Added internal `/ui_data/*` routes for lightweight board data and on-demand task details.
- Updated the `/stats` page to load a lightweight board model first and fetch full task details only for the selected task.
- Hid internal UI routes from Swagger / OpenAPI documentation.
- Updated tests and project documentation to match the new dashboard behavior.

### Why

- The previous dashboard rendered the full task payload for every card directly into the HTML.
- This caused unnecessary data transfer and made the page size grow linearly with the number of tasks.
- The change reduces the initial payload and loads detailed data only when it is actually needed.

### Effect

- The `/stats` HTML response became nearly constant in size instead of growing with the full board.
- Embedded per-card task payloads were removed from the DOM.
- The dashboard now transfers less data on initial load and keeps full task details as a separate targeted request.
- Measured impact on a 1000-task dataset:
  - `/stats` HTML reduced from `632,377 B` to `11,413 B`
  - embedded task payload reduced from `250,800 B` to `0 B`
  - full board data moved into a lightweight JSON response (`162,656 B`)
  - selected task details are loaded separately in a small response (`179 B`)