Replace the flat dark rectangle status bar with a baked riveted-metal "blue steel plate" background styled after Wolfenstein 3D's original HUD:
- Add `paintHudBar` to WolfensteinArt.js generating a 1920x140 texture with vertical steel gradient, bevel edges, recessed readout panels, divider strips with rivets, and a centered portrait socket sized around the new `HUD_PORTRAIT_SIZE` constant
- Add `paintProfile` fallback face and wire up `profile.png` (128x128, 3 health frames) in wolfenstein-artwork.json
- Rebuild `_buildHud` in WolfensteinGame.js: left panel shows episode/mission label + HEALTH value, center shows health-reactive portrait (frame swaps at 66/33 HP thresholds), right panel shows INVENTORY key icons + AMMO count with equipped weapon icon
- Derive weapon/key icon frames from `rules.items` data instead of hardcoded values so HUD stays in sync with wolfenstein-rules.json
- Add `_hudEpisodeMissionText()` helper for static per-level label text (campaign episode/mission or test level name)
- Apply subdued CRT overlay (`applyArcadeCRTOverlay`) tuned for a tactical-display feel, destroyed on teardown
- Switch HUD fonts to shared `m6x11` pixel font with white/ice-blue lettering; remove old KEY_COLORS constant and rectangular key indicators
Brian Fertig
8b213ea887
