feat: v2 — queue matchmaking, procedural audio, sprite archetypes, auth

- Add queue-based matchmaking with Elo-proximity and 10s timeout
- Procedural sound engine (SFX, voice announcer, 4-track music)
- Sprite system refactored into 6 archetypes (standard, lobster, sheep, cyborg, blob, tank)
- 42+ fight choreographies with themed/generic/wild card selection
- 4 KO finish styles, super-speed mode, hyperdetail close-ups
- Auth routes, JoinBout page, bot profile with stats
- 7-tier ranking system (Baby through Legend)
- Arena and challenge system expansions

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

server/src/routes/queue.ts

@@ -0,0 +1,43 @@
+import { Hono } from 'hono'
+import { db, schema } from '../db/index.js'
+import { eq } from 'drizzle-orm'
+import { joinQueue, leaveQueue, getQueueSize, getQueueSnapshot } from '../engine/queue.js'
+
+export const queueRouter = new Hono()
+
+// Get queue status
+queueRouter.get('/status', (c) => {
+  return c.json({
+    waiting: getQueueSize(),
+    queue: getQueueSnapshot(),
+  })
+})
+
+// Join the queue — blocks until matched, then returns fightId
+queueRouter.post('/join/:botId', async (c) => {
+  const botId = c.req.param('botId')
+
+  const botRows = await db.select({ id: schema.bots.id, name: schema.bots.name })
+    .from(schema.bots)
+    .where(eq(schema.bots.id, botId))
+    .limit(1)
+
+  if (botRows.length === 0) {
+    return c.json({ error: 'Bot not found.' }, 404)
+  }
+
+  try {
+    const fightId = await joinQueue(botId)
+    return c.json({ fightId, message: 'Matched! Fight starting.' })
+  } catch (err) {
+    const message = err instanceof Error ? err.message : 'Queue error'
+    return c.json({ error: message }, 500)
+  }
+})
+
+// Leave the queue
+queueRouter.post('/leave/:botId', (c) => {
+  const botId = c.req.param('botId')
+  const left = leaveQueue(botId)
+  return c.json({ left })
+})