diff --git a/api/relay.ts b/api/relay.ts
index dd6eee6..979d4a0 100644
--- a/api/relay.ts
+++ b/api/relay.ts
@@ -29,10 +29,7 @@ import { createRateLimiter } from "../src/middleware/rate-limiter";
 import { logRelayEvent } from "../src/middleware/logger";
 import { handleChatCompletion, listModels } from "../src/lib/ai-proxy";
 import { handleAnthropicMessages } from "../src/lib/anthropic-proxy";
-
-// Read test-api.html at module scope so Bun's bundler inlines the content
-// at build time (Vercel serverless has no filesystem at runtime).
-const testApiHtmlRaw = await Bun.file("public/test-api.html").text();
+import testApiHtmlRaw from "./test-api-content";
 
 // ─── Configuration ──────────────────────────────────────────────────────────────
 
diff --git a/api/test-api-content.ts b/api/test-api-content.ts
new file mode 100644
index 0000000..f8acb33
--- /dev/null
+++ b/api/test-api-content.ts
@@ -0,0 +1 @@
+export default "<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n  <meta charset=\"UTF-8\">\n  <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n  <title>Edge Proxy — API Test</title>\n  <style>\n    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }\n    body { font-family: system-ui, -apple-system, sans-serif; background: #0d1117; color: #e1e4e8; padding: 1.5rem; }\n    main { max-width: 960px; margin: 0 auto; }\n    h1 { font-size: 1.5rem; color: #58a6ff; margin-bottom: 0.25rem; }\n    .sub { color: #8b949e; margin-bottom: 1.5rem; font-size: 0.9rem; }\n\n    .card { background: #161b22; border: 1px solid #30363d; border-radius: 8px; margin-bottom: 1rem; overflow: hidden; }\n    .card-header { padding: 0.75rem 1rem; background: #1c2128; border-bottom: 1px solid #30363d; font-weight: 600; cursor: pointer; display: flex; align-items: center; gap: 0.5rem; user-select: none; }\n    .card-header:hover { background: #21262d; }\n    .card-header .method { font-size: 0.7rem; padding: 1px 6px; border-radius: 3px; font-weight: 600; }\n    .get { background: #1f6feb33; color: #58a6ff; }\n    .post { background: #23863633; color: #3fb950; }\n    .card-body { padding: 1rem; display: none; }\n    .card.open .card-body { display: block; }\n    .card-header .arrow { margin-left: auto; transition: transform .15s; }\n    .card.open .arrow { transform: rotate(90deg); }\n\n    label { display: block; font-size: 0.8rem; color: #8b949e; margin-bottom: 0.25rem; }\n    input, textarea, select { width: 100%; background: #0d1117; border: 1px solid #30363d; border-radius: 4px; color: #e1e4e8; padding: 0.5rem 0.75rem; font-family: inherit; font-size: 0.9rem; margin-bottom: 0.75rem; }\n    input:focus, textarea:focus { border-color: #58a6ff; outline: none; }\n    textarea { min-height: 60px; resize: vertical; font-family: 'SF Mono', 'Cascadia Code', monospace; font-size: 0.8rem; }\n    textarea.code { min-height: 120px; }\n\n    .row { display: flex; gap: 0.75rem; }\n    .row > * { flex: 1; }\n\n    .btn { background: #238636; color: #fff; border: none; border-radius: 6px; padding: 0.5rem 1.25rem; font-size: 0.85rem; cursor: pointer; font-weight: 500; }\n    .btn:hover { background: #2ea043; }\n    .btn:disabled { opacity: 0.5; cursor: not-allowed; }\n    .btn-outline { background: transparent; border: 1px solid #30363d; color: #c9d1d9; }\n    .btn-outline:hover { background: #21262d; border-color: #8b949e; }\n    .btn-danger { background: #da3633; }\n    .btn-danger:hover { background: #f85149; }\n\n    .output { background: #0d1117; border: 1px solid #30363d; border-radius: 4px; padding: 0.75rem; margin-top: 0.5rem; }\n    .output pre { font-family: 'SF Mono', 'Cascadia Code', monospace; font-size: 0.78rem; white-space: pre-wrap; word-break: break-all; max-height: 300px; overflow: auto; color: #c9d1d9; }\n    .output .meta { font-size: 0.75rem; color: #8b949e; margin-bottom: 0.5rem; }\n    .output .meta .status.ok { color: #3fb950; }\n    .output .meta .status.err { color: #f85149; }\n\n    .toast { position: fixed; bottom: 1.5rem; right: 1.5rem; background: #1c2128; border: 1px solid #30363d; border-radius: 6px; padding: 0.75rem 1rem; font-size: 0.85rem; display: none; z-index: 100; }\n  </style>\n</head>\n<body>\n<main>\n  <h1>Edge Proxy Relay — API Test</h1>\n  <p class=\"sub\">Test all proxy endpoints from the browser</p>\n\n  <!-- Global Auth -->\n  <div class=\"card open\">\n    <div class=\"card-header\">\n      <span class=\"method get\">AUTH</span> API Key\n      <span class=\"arrow\">▶</span>\n    </div>\n    <div class=\"card-body\">\n      <label>API Key (default: <code>sk-dummy-key</code>)</label>\n      <div class=\"row\">\n        <input type=\"text\" id=\"apiKey\" value=\"sk-dummy-key\" />\n        <input type=\"text\" id=\"baseUrl\" value=\"http://localhost:3000\" placeholder=\"http://localhost:3000\" />\n      </div>\n    </div>\n  </div>\n\n  <!-- Health -->\n  <div class=\"card open\">\n    <div class=\"card-header\" onclick=\"toggleCard(this)\">\n      <span class=\"method get\">GET</span> /health\n      <span class=\"arrow\">▶</span>\n    </div>\n    <div class=\"card-body\">\n      <button class=\"btn\" onclick=\"callHealth()\">Ping Health</button>\n      <div id=\"output-health\" class=\"output\" style=\"display:none\"><pre></pre></div>\n    </div>\n  </div>\n\n  <!-- Models -->\n  <div class=\"card open\">\n    <div class=\"card-header\" onclick=\"toggleCard(this)\">\n      <span class=\"method get\">GET</span> /v1/models\n      <span class=\"arrow\">▶</span>\n    </div>\n    <div class=\"card-body\">\n      <button class=\"btn\" onclick=\"callModels()\">List Models</button>\n      <div id=\"output-models\" class=\"output\" style=\"display:none\"><pre></pre></div>\n    </div>\n  </div>\n\n  <!-- Chat Completions -->\n  <div class=\"card\">\n    <div class=\"card-header\" onclick=\"toggleCard(this)\">\n      <span class=\"method post\">POST</span> /v1/chat/completions\n      <span class=\"arrow\">▶</span>\n    </div>\n    <div class=\"card-body\">\n      <label>Model</label>\n      <input type=\"text\" id=\"chatModel\" value=\"gpt-4o-mini\" />\n      <label>Messages (JSON array)</label>\n      <textarea id=\"chatMessages\" class=\"code\">[{\"role\":\"user\",\"content\":\"Say hello in one word\"}]</textarea>\n      <label><input type=\"checkbox\" id=\"chatStream\" /> Stream (SSE)</label>\n      <div style=\"margin-top:0.5rem\"><button class=\"btn\" onclick=\"callChat()\">Send</button></div>\n      <div id=\"output-chat\" class=\"output\" style=\"display:none\"><pre></pre></div>\n    </div>\n  </div>\n\n  <!-- Anthropic Messages -->\n  <div class=\"card\">\n    <div class=\"card-header\" onclick=\"toggleCard(this)\">\n      <span class=\"method post\">POST</span> /v1/messages (Anthropic)\n      <span class=\"arrow\">▶</span>\n    </div>\n    <div class=\"card-body\">\n      <label>Model</label>\n      <input type=\"text\" id=\"anthModel\" value=\"claude-sonnet-4-6\" />\n      <label>Max Tokens</label>\n      <input type=\"number\" id=\"anthMaxTokens\" value=\"256\" />\n      <label>Messages (JSON)</label>\n      <textarea id=\"anthMessages\" class=\"code\">[{\"role\":\"user\",\"content\":\"Say hello in one word\"}]</textarea>\n      <label><input type=\"checkbox\" id=\"anthStream\" /> Stream (SSE)</label>\n      <div style=\"margin-top:0.5rem\"><button class=\"btn\" onclick=\"callAnthropic()\">Send</button></div>\n      <div id=\"output-anth\" class=\"output\" style=\"display:none\"><pre></pre></div>\n    </div>\n  </div>\n\n  <!-- Generic Relay -->\n  <div class=\"card\">\n    <div class=\"card-header\" onclick=\"toggleCard(this)\">\n      <span class=\"method post\">RELAY</span> Generic HTTP Relay\n      <span class=\"arrow\">▶</span>\n    </div>\n    <div class=\"card-body\">\n      <label>Relay Target URL</label>\n      <input type=\"text\" id=\"relayTarget\" value=\"https://httpbin.org\" />\n      <label>Relay Path</label>\n      <input type=\"text\" id=\"relayPath\" value=\"/get\" />\n      <label>Method</label>\n      <select id=\"relayMethod\"><option>GET</option><option>POST</option></select>\n      <label>Body (JSON, optional)</label>\n      <textarea id=\"relayBody\" class=\"code\" placeholder='{\"test\":true}'></textarea>\n      <div style=\"margin-top:0.5rem\"><button class=\"btn\" onclick=\"callRelay()\">Send</button></div>\n      <div id=\"output-relay\" class=\"output\" style=\"display:none\"><pre></pre></div>\n    </div>\n  </div>\n\n  <div id=\"toast\" class=\"toast\"></div>\n</main>\n\n<script>\n// --- Config ---\nfunction apiBase() { return document.getElementById('baseUrl').value || 'http://localhost:3000'; }\nfunction authHeaders() {\n  const k = document.getElementById('apiKey').value || 'sk-dummy-key';\n  return { 'Authorization': 'Bearer ' + k, 'Content-Type': 'application/json' };\n}\n\n// --- Toggle ---\nfunction toggleCard(header) {\n  header.parentElement.classList.toggle('open');\n}\n\n// --- Toast ---\nlet toastTimer;\nfunction showToast(msg, ok = true) {\n  const el = document.getElementById('toast');\n  el.textContent = (ok ? '✓ ' : '✗ ') + msg;\n  el.style.display = 'block';\n  el.style.borderColor = ok ? '#3fb950' : '#f85149';\n  clearTimeout(toastTimer);\n  toastTimer = setTimeout(() => el.style.display = 'none', 3000);\n}\n\n// --- Shared fetch ---\nasync function apiFetch(method, path, body, { rawHeaders, stream } = {}) {\n  const headers = rawHeaders || authHeaders();\n  let resp;\n  if (stream) {\n    resp = await fetch(apiBase() + path, { method, headers, body: body ? JSON.stringify(body) : undefined });\n  } else {\n    resp = await fetch(apiBase() + path, { method, headers, body: body ? JSON.stringify(body) : undefined });\n  }\n  if (stream && resp.ok && resp.headers.get('content-type')?.includes('text/event-stream')) {\n    return { resp, streamReader: resp.body.getReader() };\n  }\n  let data = null;\n  const text = await resp.text();\n  try { data = JSON.parse(text); } catch { data = text; }\n  return { resp, data };\n}\n\nfunction showOutput(id, resp, data, raw) {\n  const el = document.getElementById('output-' + id);\n  el.style.display = 'block';\n  const ok = resp.status >= 200 && resp.status < 300;\n  el.innerHTML = `<div class=\"meta\">\n    <span class=\"status ${ok ? 'ok' : 'err'}\">${resp.status} ${resp.statusText}</span>\n    ${elapsed()}ms\n  </div>\n  <pre>${escapeHtml(typeof data === 'string' ? data : JSON.stringify(data, null, 2)).slice(0, 10000)}</pre>`;\n  showToast(`${resp.status} ${resp.statusText}`, ok);\n}\n\nfunction streamOutput(id, chunk) {\n  const el = document.getElementById('output-' + id);\n  el.style.display = 'block';\n  const pre = el.querySelector('pre');\n  if (!pre) {\n    el.innerHTML = `<div class=\"meta\">streaming…</div><pre></pre>`;\n  }\n  const p = el.querySelector('pre');\n  p.textContent += chunk;\n  p.scrollTop = p.scrollHeight;\n}\n\nlet _elapsedBase = 0;\nfunction elapsed() { return Date.now() - _elapsedBase; }\n\n// --- Health ---\nasync function callHealth() {\n  _elapsedBase = Date.now();\n  try {\n    const { resp, data } = await apiFetch('GET', '/health');\n    showOutput('health', resp, data);\n  } catch (e) { showOutput('health', {status:0,statusText:'Network Error'}, e.message); showToast(e.message, false); }\n}\n\n// --- Models ---\nasync function callModels() {\n  _elapsedBase = Date.now();\n  try {\n    const { resp, data } = await apiFetch('GET', '/v1/models');\n    showOutput('models', resp, data);\n  } catch (e) { showOutput('models', {status:0,statusText:'Network Error'}, e.message); showToast(e.message, false); }\n}\n\n// --- Chat Completions ---\nasync function callChat() {\n  _elapsedBase = Date.now();\n  const stream = document.getElementById('chatStream').checked;\n  let messages;\n  try { messages = JSON.parse(document.getElementById('chatMessages').value); }\n  catch { showToast('Invalid messages JSON', false); return; }\n\n  const body = {\n    model: document.getElementById('chatModel').value || 'gpt-4o-mini',\n    messages,\n    stream,\n    max_tokens: 128,\n  };\n\n  try {\n    if (stream) {\n      const el = document.getElementById('output-chat');\n      el.style.display = 'block';\n      el.innerHTML = `<div class=\"meta\">streaming text/event-stream …</div><pre></pre>`;\n      const resp = await fetch(apiBase() + '/v1/chat/completions', {\n        method: 'POST',\n        headers: authHeaders(),\n        body: JSON.stringify(body),\n      });\n      if (!resp.ok) {\n        showOutput('chat', resp, await resp.text());\n        return;\n      }\n      const reader = resp.body.getReader();\n      const decoder = new TextDecoder();\n      let done;\n      while (!done) {\n        const { value, done: d } = await reader.read();\n        done = d;\n        if (value) streamOutput('chat', decoder.decode(value));\n      }\n      showToast('stream complete');\n    } else {\n      const { resp, data } = await apiFetch('POST', '/v1/chat/completions', body);\n      showOutput('chat', resp, data);\n    }\n  } catch (e) { showOutput('chat', {status:0,statusText:'Network Error'}, e.message); showToast(e.message, false); }\n}\n\n// --- Anthropic ---\nasync function callAnthropic() {\n  _elapsedBase = Date.now();\n  const stream = document.getElementById('anthStream').checked;\n  let messages;\n  try { messages = JSON.parse(document.getElementById('anthMessages').value); }\n  catch { showToast('Invalid messages JSON', false); return; }\n\n  const body = {\n    model: document.getElementById('anthModel').value || 'claude-sonnet-4-6',\n    max_tokens: parseInt(document.getElementById('anthMaxTokens').value) || 256,\n    messages,\n    stream,\n  };\n\n  try {\n    if (stream) {\n      const el = document.getElementById('output-anth');\n      el.style.display = 'block';\n      el.innerHTML = `<div class=\"meta\">streaming …</div><pre></pre>`;\n      const resp = await fetch(apiBase() + '/v1/messages', {\n        method: 'POST',\n        headers: authHeaders(),\n        body: JSON.stringify(body),\n      });\n      if (!resp.ok) {\n        showOutput('anth', resp, await resp.text());\n        return;\n      }\n      const reader = resp.body.getReader();\n      const decoder = new TextDecoder();\n      let done;\n      while (!done) {\n        const { value, done: d } = await reader.read();\n        done = d;\n        if (value) streamOutput('anth', decoder.decode(value));\n      }\n      showToast('stream complete');\n    } else {\n      const { resp, data } = await apiFetch('POST', '/v1/messages', body);\n      showOutput('anth', resp, data);\n    }\n  } catch (e) { showOutput('anth', {status:0,statusText:'Network Error'}, e.message); showToast(e.message, false); }\n}\n\n// --- Relay ---\nasync function callRelay() {\n  _elapsedBase = Date.now();\n  const target = document.getElementById('relayTarget').value;\n  const path = document.getElementById('relayPath').value || '/';\n  const method = document.getElementById('relayMethod').value;\n  const rawBody = document.getElementById('relayBody').value;\n\n  try {\n    const resp = await fetch(apiBase() + '/', {\n      method,\n      headers: {\n        'x-relay-target': target,\n        'x-relay-path': path,\n        ...(rawBody ? { 'Content-Type': 'application/json' } : {}),\n      },\n      body: rawBody || undefined,\n    });\n    const text = await resp.text();\n    let data;\n    try { data = JSON.parse(text); } catch { data = text; }\n    showOutput('relay', resp, data);\n  } catch (e) { showOutput('relay', {status:0,statusText:'Network Error'}, e.message); showToast(e.message, false); }\n}\n\nfunction escapeHtml(s) {\n  const d = document.createElement('div');\n  d.textContent = s;\n  return d.innerHTML;\n}\n</script>\n</body>\n</html>\n";
