Township: Wan video LoRAs, enhance feature, lightbox, outcome fixes

Several related changes accumulated in this session:

Wan video LoRAs (additive — image LoRAs kept for keyframes):
- New per-model maps video_loras.json/env_video_loras.json keyed
  name -> {model_slug: path}; on-disk names tagged with the video model slug.
- Video requests attach the video LoRA matching the current video model's slug;
  image LoRAs stay on the keyframe path only.
- Per-profile "Train video LoRA" button + step button + full-run checkbox +
  --video-loras/--only-video-loras; batch + CLI wiring; client target="video".

Final/outcome enhance (upscale 2x/4x + raise FPS):
- _enhance_video_file + Phase C stage; --upscale-factor/--fps-multiplier and
  Run-page selects; match-page Enhance card with live progress bars.

Match page UX:
- Video previews enlarge + center on play (video lightbox).
- Match render shows global + per-clip progress bars, surviving reload.

Outcome fixes:
- Re-rendering a match's outcomes now resolves legacy per-fighter outcomes
  (no match_name) by fighter membership, and forces them into the match's
  environment so a match stays in one location.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>