Add the Half-Life VOX/HEV TTS presets

CURRENT.md

@@ -40,6 +40,13 @@ mobile draft at 390px.
   - [x] C11 preview caching: Discord-hosted image/GIF previews (WebP 320px, hash-addressed, 5 MiB
     cap, one attempt) run after every walk in both modes. Live run `...-20260916090722`:
     `previewed: 2`; thumbs served over `/api/media/<scrape>/<item>/thumb` (200).
+  - [x] C63 Half-Life presets. The wrapper now implements `VESKSLOP_TTS_PRESET=vox|hev` (Keith
+    Bell profile: VOX pitch 3/rate 17/prominence 22/head 52/volume 70, HEV pitch 15/rate 24,
+    expression 59; other voices untouched; preset < profile < expression; the `vox` preset implies
+    VOX prosody unless `VESKSLOP_TTS_VOX` is set). The daemon carries `tts.preset` (vox/hev/null),
+    per-line overrides on `/api/audio/speak` and MCP `speak`, the `VESKSLOP_TTS_PRESET` export and
+    `{preset}` placeholder, and the TTS panel has a preset select that auto-enables VOX (and drops
+    the preset if VOX is turned off). Wrapper syntax checked; preferences round-trip verified.
   - [x] C62 VOX prosody controls. The last open Veskslop-side item from the MicroslopSam design:
     `tts.vox` and `tts.voxClean` preferences (per-line overrides on `/api/audio/speak` and MCP
     `speak`), `VESKSLOP_TTS_VOX` / `VESKSLOP_TTS_VOX_CLEAN` exports plus `{vox}` / `{vox_clean}`