# ECP-0019: add HDHomeRun by host/IP in Tauri UI

## Status
Draft

## Context
Auto-discovery is great, but users sometimes only have a device IP/hostname. We need a direct add flow to attach HDHomeRun devices to the local catalog without relying on UDP discovery.

## Decision
Add a manual HDHomeRun host/IP input in the Tauri “Add source” menu. The backend will resolve `discover.json`, fetch the lineup, and add the streams/sources to the local catalog.

## Details
- New Tauri command `add_hdhr_source` takes a host/IP and hydrates channels.
- Manual devices are kept alongside auto-discovered devices; refresh does not delete manual sources.
- Manual streams and sources are merged into the local catalog and startable like auto-discovered streams.
- Manual host list is normalized (strips scheme/path, trims slashes) and persisted under the app config directory for reuse across restarts.

## Consequences
- Users can onboard a device without UDP discovery.
- Manual entries survive restarts but can be managed by editing/removing the saved host list if needed.