feat: v5 — boxing poster fight cards, 12-char names, diverse mock bots

- Fight Card page: dramatic poster background with cross-hatch, spotlights,
  vignettes, corner brackets, scan lines; 3D VS orb with punch animation;
  selectable undercard with main event always pinned at top
- PosterSprite: high-quality 480px poster frame with 6-pass renderer
  (aura, glow, bevel, specular, particles); PixelGlove component
- 12-char bot name limit across all forms and server validation
- Mock bots: all 100 now have diverse archetypes (25 types), 25% human
  fighters; seedMockBots updates existing bots on restart
- Leaderboard: inline SpritePreview next to each bot name
- Nostr auth: persistent login, nsec copy button
- Wallet: NWC + Lightning Address, ranked fight flow
- Server: payments, ranked queue, customization endpoint

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

server/src/index.ts

@@ -1,12 +1,23 @@
 import { serve } from '@hono/node-server'
 import { app } from './app.js'
 import { runMigrations } from './db/startup.js'
-import { seedMockBots } from './engine/mock.js'
+import { seedMockBots, seedClassicBots } from './engine/mock.js'
 import { startBackgroundFights } from './engine/background.js'
 
+// Production env validation
+if (process.env.NODE_ENV === 'production') {
+  const required = ['BOTFIGHTS_NWC_URL', 'BOTFIGHTS_WALLET_ENCRYPTION_KEY']
+  const missing = required.filter(k => !process.env[k])
+  if (missing.length > 0) {
+    console.error(`[FATAL] Missing required env vars for production: ${missing.join(', ')}`)
+    process.exit(1)
+  }
+}
+
 // Run migrations and seed mock bots before starting the server
 runMigrations()
 await seedMockBots()
+await seedClassicBots()
 
 const port = Number(process.env.PORT) || 9100