feat(09-03): point every in-app setup surface at the one prompt, add copy affordances

- JoinBoutPage.vue: setupDocPath()/setupDocName() collapse to /docs/BOTFIGHTS.md
  regardless of connection mode; keep YOUR_BOT_ID/YOUR_BOT_SECRET substitution
  and add a third substitution for {{ARENA_URL}} -> window.location.origin
- BotProfilePage.vue: same collapse; the webhook/polling guide-type selector
  is gone (there's only one guide now) -- replaced with a single 'LOAD SETUP
  GUIDE' button, same credential + {{ARENA_URL}} substitution
- DocsPage.vue: new 'GIVE THIS TO YOUR AI' panel at the top of the page --
  copy-to-clipboard for the full /api/docs/prompt response, plus the literal
  URL shown so a user can hand an agent the link instead of the text.
  Existing API reference / webhook tester tabs unchanged below it
- e2e/signup-bot.spec.ts: two new tests -- docs page shows the copy
  affordance, and GET /api/docs/prompt (via page.request) returns 200 with
  the registration endpoint and no leftover {{ARENA_URL}} token

frontend/src/pages/BotProfilePage.vue

@@ -115,7 +115,6 @@ const regenError = ref('')
 const guideContent = ref('')
 const guideLoading = ref(false)
 const guideCopied = ref(false)
-const guideMode = ref<'webhook' | 'polling'>('webhook')
 
 const ARCHETYPES = [
   'standard', 'lobster', 'sheep', 'cyborg', 'blob', 'tank', 'dog', 'cat',
@@ -294,17 +293,16 @@ async function handleRegenerateSecret() {
   isRegenerating.value = false
 }
 
-async function loadGuide(mode: 'webhook' | 'polling') {
-  guideMode.value = mode
+async function loadGuide() {
   guideLoading.value = true
   guideContent.value = ''
   guideCopied.value = false
-  const path = mode === 'polling' ? '/docs/BOTFIGHTS-POLLING.md' : '/docs/BOTFIGHTS-WEBHOOK.md'
   try {
-    const res = await fetch(path)
+    const res = await fetch('/docs/BOTFIGHTS.md')
     let content = await res.text()
     content = content.replace(/YOUR_BOT_ID/g, regeneratedBotId.value)
     content = content.replace(/YOUR_BOT_SECRET/g, regeneratedSecret.value)
+    content = content.replace(/\{\{ARENA_URL\}\}/g, window.location.origin)
     guideContent.value = content
   } catch {
     guideContent.value = '# Failed to load setup guide'
@@ -856,33 +854,22 @@ const tierClass = (t: number) => `tier-${t}`
                     <p class="font-mono text-[9px] text-ko mt-2">Save this now. It will not be shown again after you leave this page.</p>
                   </div>
 
-                  <!-- Guide type selector -->
-                  <div class="flex gap-2">
-                    <button
-                      class="flex-1 py-1.5 border font-display font-bold text-[10px] tracking-wider transition-all"
-                      :class="guideMode === 'webhook'
-                        ? 'border-neon-cyan/50 text-neon-cyan bg-neon-cyan/10'
-                        : 'border-border text-text-muted hover:border-neon-cyan/30'"
-                      @click="loadGuide('webhook')"
-                    >
-                      WEBHOOK
-                    </button>
-                    <button
-                      class="flex-1 py-1.5 border font-display font-bold text-[10px] tracking-wider transition-all"
-                      :class="guideMode === 'polling'
-                        ? 'border-neon-purple/50 text-neon-purple bg-neon-purple/10'
-                        : 'border-border text-text-muted hover:border-neon-purple/30'"
-                      @click="loadGuide('polling')"
-                    >
-                      POLLING
-                    </button>
-                  </div>
+                  <!-- Load the unified setup guide -->
+                  <button
+                    v-if="!guideContent"
+                    class="w-full py-1.5 border border-border text-text-secondary font-display font-bold text-[10px]
+                           tracking-wider hover:border-neon-purple/40 hover:text-neon-purple transition-all"
+                    :disabled="guideLoading"
+                    @click="loadGuide()"
+                  >
+                    {{ guideLoading ? 'LOADING...' : 'LOAD SETUP GUIDE' }}
+                  </button>
 
                   <!-- Guide content -->
                   <div v-if="guideContent" class="border border-border bg-black/40 overflow-hidden">
                     <div class="flex items-center justify-between px-3 py-2 border-b border-border/50 bg-surface-raised/30">
                       <span class="font-display font-bold text-[9px] tracking-wider text-text-muted">
-                        {{ guideMode === 'polling' ? 'BOTFIGHTS-POLLING.md' : 'BOTFIGHTS-WEBHOOK.md' }}
+                        BOTFIGHTS.md
                       </span>
                       <button
                         class="font-display font-bold text-[9px] tracking-wider px-2 py-0.5 border transition-all"
@@ -897,12 +884,6 @@ const tierClass = (t: number) => `tier-${t}`
                     <pre class="p-3 font-mono text-[10px] text-text-secondary leading-relaxed
                                overflow-x-auto max-h-60 overflow-y-auto whitespace-pre-wrap break-words select-all">{{ guideContent }}</pre>
                   </div>
-                  <div v-else-if="guideLoading" class="p-4 text-center">
-                    <p class="font-mono text-[10px] text-text-muted animate-pulse">Loading...</p>
-                  </div>
-                  <p v-else class="font-mono text-[10px] text-text-muted text-center">
-                    Choose webhook or polling above to view the setup guide.
-                  </p>
                 </template>
 
                 <!-- Not yet regenerated — show button -->

frontend/src/pages/DocsPage.vue

@@ -36,6 +36,32 @@ function copyText(text: string, id: string) {
   setTimeout(() => { if (copiedId.value === id) copiedId.value = '' }, 2000)
 }
 
+// ── "Give this to your AI" — the single self-contained setup prompt (BOT-02) ──
+const promptUrl = computed(() => `${window.location.origin}/api/docs/prompt`)
+const promptLoading = ref(false)
+const promptCopied = ref<'' | 'url' | 'text'>('')
+
+function copyPromptUrl() {
+  navigator.clipboard.writeText(promptUrl.value)
+  promptCopied.value = 'url'
+  setTimeout(() => { if (promptCopied.value === 'url') promptCopied.value = '' }, 2000)
+}
+
+async function copyFullPromptText() {
+  promptLoading.value = true
+  try {
+    const res = await fetch('/api/docs/prompt')
+    const text = await res.text()
+    navigator.clipboard.writeText(text)
+    promptCopied.value = 'text'
+    setTimeout(() => { if (promptCopied.value === 'text') promptCopied.value = '' }, 2000)
+  } catch {
+    // no-op — user can retry
+  } finally {
+    promptLoading.value = false
+  }
+}
+
 const tabs = ['quickstart', 'api', 'challenges', 'scoring', 'security', 'testing'] as const
 
 // ── Code examples ──
@@ -542,6 +568,40 @@ async function runWebhookTest() {
         {{ error }}
       </div>
 
+      <!-- "Give this to your AI" — the one self-contained setup prompt -->
+      <div class="border-2 border-neon-cyan/40 bg-neon-cyan/5 p-5 mb-4 shrink-0">
+        <h3 class="font-display font-bold text-sm text-neon-cyan tracking-wider mb-2">
+          GIVE THIS TO YOUR AI
+        </h3>
+        <p class="font-mono text-text-muted text-[10px] mb-3">
+          One self-contained prompt covers everything: registration, credentials, both
+          protocols, every endpoint. Paste it into your AI, or hand it the URL below — no other
+          docs required.
+        </p>
+        <div class="flex items-center gap-2 mb-3">
+          <code class="flex-1 bg-bg border border-border px-3 py-2 font-mono text-[10px] text-neon-cyan overflow-x-auto whitespace-nowrap">{{ promptUrl }}</code>
+          <button
+            class="px-3 py-2 text-[9px] font-display font-bold uppercase tracking-wider border transition-colors shrink-0"
+            :class="promptCopied === 'url'
+              ? 'text-neon-green border-neon-green/50'
+              : 'text-text-muted border-border hover:border-neon-cyan/50'"
+            @click="copyPromptUrl"
+          >
+            {{ promptCopied === 'url' ? 'COPIED' : 'COPY URL' }}
+          </button>
+        </div>
+        <button
+          class="w-full py-2.5 font-display font-bold text-xs uppercase tracking-wider border-2 transition-all"
+          :class="promptLoading
+            ? 'border-border/30 text-text-muted cursor-not-allowed'
+            : (promptCopied === 'text' ? 'border-neon-green text-neon-green' : 'border-neon-cyan text-neon-cyan hover:bg-neon-cyan/10')"
+          :disabled="promptLoading"
+          @click="copyFullPromptText"
+        >
+          {{ promptLoading ? 'LOADING...' : (promptCopied === 'text' ? 'COPIED!' : 'COPY FULL PROMPT') }}
+        </button>
+      </div>
+
       <!-- Tab nav -->
       <div class="flex flex-wrap gap-1 mb-4 border-b border-border shrink-0">
         <button

frontend/src/pages/JoinBoutPage.vue

@@ -520,11 +520,11 @@ const setupContentCopied = ref(false)
 watch(connectionMode, () => { setupContent.value = ''; showSetupContent.value = false })
 
 function setupDocPath() {
-  return connectionMode.value === 'polling' ? '/docs/BOTFIGHTS-POLLING.md' : '/docs/BOTFIGHTS-WEBHOOK.md'
+  return '/docs/BOTFIGHTS.md'
 }
 
 function setupDocName() {
-  return connectionMode.value === 'polling' ? 'BOTFIGHTS-POLLING.md' : 'BOTFIGHTS-WEBHOOK.md'
+  return 'BOTFIGHTS.md'
 }
 
 async function toggleSetupContent() {
@@ -536,6 +536,7 @@ async function toggleSetupContent() {
       let content = await res.text()
       content = content.replace(/YOUR_BOT_ID/g, botId.value)
       content = content.replace(/YOUR_BOT_SECRET/g, botSecret.value)
+      content = content.replace(/\{\{ARENA_URL\}\}/g, window.location.origin)
       setupContent.value = content
     } catch {
       setupContent.value = '# Failed to load setup guide'
@@ -557,6 +558,7 @@ async function copyFullPrompt() {
       let content = await res.text()
       content = content.replace(/YOUR_BOT_ID/g, botId.value)
       content = content.replace(/YOUR_BOT_SECRET/g, botSecret.value)
+      content = content.replace(/\{\{ARENA_URL\}\}/g, window.location.origin)
       setupContent.value = content
     } catch { /* fall through with empty content */ }
   }