feat: comedy overhaul start, profile page, bot setup docs, auth improvements

Rewrites announcer commentary (HYPE_LINES, DEEP_INTROS, ROUND_HYPE) with
modern edgy humor. Adds BOT_SETUP.md, bot SDK, customization engine,
profile page character display, persistent auth, rate limit tweaks.

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

frontend/src/composables/useNostr.ts

@@ -1,11 +1,21 @@
 import { ref, readonly, computed } from 'vue'
 
+interface BotCustomization {
+  archetype?: string
+  primaryColor?: string
+  secondaryColor?: string
+  forceVisor?: boolean
+  forceMohawk?: boolean
+  forceHorns?: boolean
+}
+
 interface BotData {
   id: string
   name: string
   avatarSeed: string
   archetype: string
   profilePicUrl: string | null
+  customization: BotCustomization | null
   eloRating: number
   wins: number
   losses: number
@@ -122,6 +132,7 @@ export function useNostr() {
       avatarSeed: data.name,
       archetype: data.archetype,
       profilePicUrl: profilePicUrl.value,
+      customization: data.customization || null,
       eloRating: 1200,
       wins: 0,
       losses: 0,
@@ -134,6 +145,30 @@ export function useNostr() {
     return bot.value
   }
 
+  async function updateCustomization(customization: BotCustomization): Promise<void> {
+    if (!pubkey.value) throw new Error('Not logged in')
+
+    const res = await fetch('/api/auth/update', {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({ pubkey: pubkey.value, customization }),
+    })
+
+    if (!res.ok) {
+      const data = await res.json()
+      throw new Error(data.error || 'Update failed')
+    }
+
+    if (bot.value) {
+      bot.value = {
+        ...bot.value,
+        customization: { ...(bot.value.customization || {}), ...customization },
+        archetype: customization.archetype || bot.value.archetype,
+      }
+      store('bf_bot', bot.value)
+    }
+  }
+
   function logout() {
     pubkey.value = null
     bot.value = null
@@ -152,6 +187,7 @@ export function useNostr() {
     hasExtension,
     login,
     registerBot,
+    updateCustomization,
     logout,
   }
 }