feat: betting history with P&L tracking on bot profile

BetHistory component shows personal bet history with fight links,
amounts, outcomes, and payouts. P&L summary shows total wagered, total
won, and net sats. Added to BotProfilePage for the bot owner's view.

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

frontend/src/components/BetHistory.vue

@@ -0,0 +1,124 @@
+<script setup lang="ts">
+import { ref, computed, onMounted } from 'vue'
+import { useRouter } from 'vue-router'
+
+const props = defineProps<{ pubkey: string }>()
+
+const router = useRouter()
+
+interface Bet {
+  id: string
+  fightId: string
+  botId: string
+  amountSats: number
+  oddsAtPlacement: number
+  status: string
+  payoutSats: number | null
+  createdAt: string
+  settledAt: string | null
+}
+
+const bets = ref<Bet[]>([])
+const isLoading = ref(true)
+
+const totalWagered = computed(() => bets.value.reduce((sum, b) => sum + b.amountSats, 0))
+const totalWon = computed(() => bets.value.reduce((sum, b) => sum + (b.payoutSats || 0), 0))
+const netSats = computed(() => totalWon.value - totalWagered.value)
+
+function statusColor(status: string): string {
+  if (status === 'won') return 'text-neon-green'
+  if (status === 'lost') return 'text-ko'
+  if (status === 'refunded') return 'text-neon-yellow'
+  return 'text-text-muted'
+}
+
+function statusLabel(status: string): string {
+  if (status === 'won') return 'WON'
+  if (status === 'lost') return 'LOST'
+  if (status === 'refunded') return 'REFUND'
+  if (status === 'locked') return 'ACTIVE'
+  return status.toUpperCase()
+}
+
+function timeAgo(dateStr: string): string {
+  const diffSec = Math.floor((Date.now() - new Date(dateStr).getTime()) / 1000)
+  if (diffSec < 60) return `${diffSec}s`
+  const diffMin = Math.floor(diffSec / 60)
+  if (diffMin < 60) return `${diffMin}m`
+  const diffHr = Math.floor(diffMin / 60)
+  if (diffHr < 24) return `${diffHr}h`
+  return `${Math.floor(diffHr / 24)}d`
+}
+
+onMounted(async () => {
+  try {
+    const res = await fetch(`/api/bets/history/${props.pubkey}`)
+    if (res.ok) {
+      const data = await res.json()
+      bets.value = data.bets || []
+    }
+  } catch { /* ignore */ }
+  isLoading.value = false
+})
+</script>
+
+<template>
+  <div>
+    <h3 class="font-display font-black text-xs tracking-widest text-neon-purple mb-2">BET HISTORY</h3>
+
+    <div v-if="isLoading" class="flex justify-center py-4">
+      <div class="w-6 h-6 border-2 border-neon-purple/30 border-t-neon-purple rounded-full animate-spin" />
+    </div>
+
+    <div v-else-if="bets.length === 0" class="py-4">
+      <p class="font-mono text-text-muted text-xs text-center">No bets placed yet.</p>
+    </div>
+
+    <template v-else>
+      <!-- P&L summary -->
+      <div class="flex gap-2 mb-3">
+        <div class="flex-1 px-2 py-1.5 bg-surface border border-border rounded-md text-center">
+          <p class="font-pixel text-[8px] text-text-muted tracking-wider">WAGERED</p>
+          <p class="font-mono text-xs text-text-primary">{{ totalWagered }}</p>
+        </div>
+        <div class="flex-1 px-2 py-1.5 bg-surface border border-border rounded-md text-center">
+          <p class="font-pixel text-[8px] text-text-muted tracking-wider">WON</p>
+          <p class="font-mono text-xs text-neon-green">{{ totalWon }}</p>
+        </div>
+        <div class="flex-1 px-2 py-1.5 bg-surface border border-border rounded-md text-center">
+          <p class="font-pixel text-[8px] text-text-muted tracking-wider">NET</p>
+          <p class="font-mono text-xs" :class="netSats >= 0 ? 'text-neon-green' : 'text-ko'">
+            {{ netSats >= 0 ? '+' : '' }}{{ netSats }}
+          </p>
+        </div>
+      </div>
+
+      <!-- Bet list -->
+      <div class="space-y-1.5 max-h-48 overflow-y-auto">
+        <button
+          v-for="bet in bets"
+          :key="bet.id"
+          class="w-full text-left px-2.5 py-1.5 bg-surface/50 border border-border rounded-md
+                 hover:border-neon-cyan/20 transition-all text-xs"
+          @click="router.push(`/arena/${bet.fightId}`)"
+        >
+          <div class="flex items-center justify-between">
+            <span class="font-mono text-text-primary">{{ bet.amountSats }} sats</span>
+            <span class="font-display font-bold text-[10px] tracking-wider" :class="statusColor(bet.status)">
+              {{ statusLabel(bet.status) }}
+            </span>
+          </div>
+          <div class="flex items-center justify-between mt-0.5">
+            <span v-if="bet.payoutSats" class="font-mono text-[10px] text-neon-green">
+              +{{ bet.payoutSats }} sats
+            </span>
+            <span v-else class="font-mono text-[10px] text-text-muted">
+              {{ (bet.oddsAtPlacement * 0.95).toFixed(2) }}x odds
+            </span>
+            <span class="font-pixel text-[8px] text-text-muted">{{ timeAgo(bet.createdAt) }}</span>
+          </div>
+        </button>
+      </div>
+    </template>
+  </div>
+</template>

frontend/src/pages/BotProfilePage.vue

@@ -5,6 +5,7 @@ import { useNostr } from '../composables/useNostr'
 import SpritePreview from '../components/SpritePreview.vue'
 import HumanPreview from '../components/HumanPreview.vue'
 import WalletConnect from '../components/WalletConnect.vue'
+import BetHistory from '../components/BetHistory.vue'
 import type { SpriteCustomization } from '../game/sprites'
 
 const route = useRoute()
@@ -701,9 +702,9 @@ const tierClass = (t: number) => `tier-${t}`
             </div>
           </div>
 
-          <!-- RIGHT COLUMN: Recent bouts (scrollable) -->
-          <div class="flex-1 min-w-0 flex flex-col min-h-0 mt-6 lg:mt-0">
-            <div class="border border-border bg-surface-raised/30 flex flex-col flex-1 min-h-0 overflow-hidden">
+          <!-- RIGHT COLUMN: Recent bouts + Bet history (scrollable) -->
+          <div class="flex-1 min-w-0 flex flex-col min-h-0 mt-6 lg:mt-0 gap-4">
+            <div class="border border-border bg-surface-raised/30 flex flex-col min-h-0 overflow-hidden">
               <div class="px-4 py-3 border-b border-border/50 flex-shrink-0">
                 <p class="font-display text-[10px] font-bold text-text-muted tracking-[0.15em]">
                   RECENT BOUTS
@@ -729,6 +730,11 @@ const tierClass = (t: number) => `tier-${t}`
                 </div>
               </div>
             </div>
+
+            <!-- Bet history (owner's view) -->
+            <div v-if="isOwner && pubkey" class="border border-border bg-surface-raised/30 p-3">
+              <BetHistory :pubkey="pubkey" />
+            </div>
           </div>
 
         </div>