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/db/schema.ts

@@ -23,6 +23,7 @@ export const bots = sqliteTable('bots', {
   satsWon: integer('sats_won').notNull().default(0),
   satsWagered: integer('sats_wagered').notNull().default(0),
   hasWallet: integer('has_wallet', { mode: 'boolean' }).notNull().default(false),
+  botType: text('bot_type', { enum: ['regular', 'mock', 'classic'] }).notNull().default('regular'),
   createdAt: text('created_at').notNull(),
 })