AMS HT not detected or displayed in Panda Touch UI

## Bug Report: AMS HT not shown in Panda Touch UI

### Device:
- Bambu Lab P1S with firmware 01.08.01.00
- Panda Touch (LAN-only mode)
- Panda Touch firmware v1.0.7.3

### Problem:
AMS HT is not displayed at all in the Panda Touch UI, despite other AMS units (AMS v1 and AMS 2 Pro) being detected and shown correctly. AMS HT is visible in the LAN API responses (`/printer/ams`) but Panda Touch ignores it entirely.

### Steps to Reproduce:
1. Use printer with AMS HT connected and recognized in Bambu Studio / on printer screen.
2. Open Panda Touch interface (LAN-only mode, firmware v1.0.7.3).
3. AMS HT is not displayed at all.

### Expected Behavior:
- AMS HT should be listed just like other AMS units.
- Show trays, humidity, and temperature for AMS HT.
- Display proper icon or label (e.g., “AMS HT”).

### Additional Notes:
- API response includes `ams_type: 128` for AMS HT.
- Confirmed working in native Bambu Studio / printer screen.

Please add basic detection for AMS HT and display its values (at least trays and humidity).

Start at the /printer/ams LAN API handling and follow how ams_type values reach the Panda Touch UI. Reproduce with an AMS HT reporting ams_type 128, then verify that its trays, humidity, temperature, and an AMS HT label or icon appear alongside other AMS units.

Written by the indexing model from the issue text.