v0.2.4 - Hotfix: Unknown status + copy UX + update banner context

Bug fix:
- config.py: empty PARAKEET_CONTAINER / MAGPIE_CONTAINER env vars (from migrating to v0.2.0+ where the field is optional and saved as '') now fall back to 'parakeet-asr' / 'magpie-tts' via the 'or' idiom. Confirmed live: services classify as 'running' instead of 'unknown'.

UX:
- Replaced text 'Copy' buttons with compact icon buttons (clipboard SVG)
- Endpoint Base URL + Model ID + curl snippet are now click-to-copy themselves (the value AND a separate icon button)
- Service cards: host, base URL, and model are now three separate copyable rows
- Update banner: leading explanatory line — 'Updates to eugr/spark-vllm-docker — the upstream project that orchestrates vLLM on your Sparks. These are not firmware, OS, or model updates.' with a link to the repo.

image/app/static/app.js

@@ -143,11 +143,16 @@ async function renderServices() {
       if (action === 'stop' && cls !== 'running' && cls !== 'starting' && cls !== 'unhealthy') return true;
       return false;
     };
+    const copyIcon = `<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><rect x="9" y="9" width="13" height="13" rx="2"/><path d="M5 15H4a2 2 0 0 1-2-2V4a2 2 0 0 1 2-2h9a2 2 0 0 1 2 2v1"/></svg>`;
+    const hostStr = s.host ? `${s.host}:${s.port}` : '';
     const hostRow = s.host
-      ? `<div class="row"><span class="k">Host</span><span class="v">${escapeHtml(s.host)}:${s.port}</span></div>`
+      ? `<div class="row"><span class="k">Host</span><span class="v copyable" data-copy-self title="Click to copy">${escapeHtml(hostStr)}</span><button class="icon-btn" data-copy-text="${escapeHtml(hostStr)}" title="Copy host" aria-label="Copy">${copyIcon}</button></div>`
       : `<div class="row"><span class="k">Host</span><span class="v muted-v">not configured</span></div>`;
+    const urlRow = s.base_url
+      ? `<div class="row"><span class="k">URL</span><span class="v copyable" data-copy-self title="Click to copy">${escapeHtml(s.base_url)}</span><button class="icon-btn" data-copy-text="${escapeHtml(s.base_url)}" title="Copy URL" aria-label="Copy">${copyIcon}</button></div>`
+      : '';
     const modelRow = s.model
-      ? `<div class="row"><span class="k">Model</span><span class="v">${escapeHtml(s.model)}</span></div>`
+      ? `<div class="row"><span class="k">Model</span><span class="v copyable" data-copy-self title="Click to copy">${escapeHtml(s.model)}</span><button class="icon-btn" data-copy-text="${escapeHtml(s.model)}" title="Copy model" aria-label="Copy">${copyIcon}</button></div>`
       : '';
     const restartsRow = s.restart_count != null && s.restart_count > 1
       ? `<div class="row"><span class="k">Restarts</span><span class="v">${s.restart_count}</span></div>`
@@ -159,6 +164,7 @@ async function renderServices() {
         <span class="status">${statusLabel(cls)}</span>
       </div>
       ${hostRow}
+      ${urlRow}
       ${modelRow}
       ${restartsRow}
       <div class="service-actions">
@@ -212,31 +218,50 @@ function renderEndpoint(status) {
   el('#ep-curl-snippet').textContent = snippet;
 }
 
-function setupCopyButtons() {
-  document.body.addEventListener('click', async (e) => {
-    const btn = e.target.closest('.copy-btn');
-    if (!btn) return;
-    const targetSel = btn.dataset.copy;
-    if (!targetSel) return;
-    const target = el(targetSel);
-    if (!target) return;
-    const text = target.textContent;
-    try {
-      await navigator.clipboard.writeText(text);
-      const original = btn.textContent;
-      btn.classList.add('copied');
-      btn.textContent = 'Copied';
-      setTimeout(() => {
-        btn.classList.remove('copied');
-        btn.textContent = original;
-      }, 1400);
-    } catch {
-      // Clipboard API may fail over plain HTTP; fall back to selection
+async function copyText(text, indicatorEl) {
+  try {
+    await navigator.clipboard.writeText(text);
+    if (indicatorEl) {
+      indicatorEl.classList.add('copied');
+      setTimeout(() => indicatorEl.classList.remove('copied'), 1200);
+    }
+    return true;
+  } catch {
+    // Plain HTTP fallback: select the text so the user can ⌘C
+    if (indicatorEl) {
       const range = document.createRange();
-      range.selectNode(target);
+      range.selectNode(indicatorEl);
       window.getSelection().removeAllRanges();
       window.getSelection().addRange(range);
     }
+    return false;
+  }
+}
+
+function setupCopyButtons() {
+  document.body.addEventListener('click', async (e) => {
+    // Inline icon copy with literal text (used for dynamically-rendered service rows)
+    const litBtn = e.target.closest('[data-copy-text]');
+    if (litBtn) {
+      await copyText(litBtn.dataset.copyText, litBtn);
+      return;
+    }
+    // Copy buttons (with svg icon) referenced by data-copy="selector"
+    const btn = e.target.closest('[data-copy]');
+    if (btn) {
+      const target = el(btn.dataset.copy);
+      if (target) {
+        await copyText(target.textContent, btn);
+        target.classList.add('copied');
+        setTimeout(() => target.classList.remove('copied'), 1200);
+      }
+      return;
+    }
+    // Self-copy: clicking the text itself
+    const selfCopy = e.target.closest('[data-copy-self]');
+    if (selfCopy) {
+      await copyText(selfCopy.textContent, selfCopy);
+    }
   });
 }