feat: show golden VM tag in clone list, add console logging, fix ubuntu boot

- Persist golden VM tag to clones/{id}/tag at spawn time
- GET /clones now returns [{id, tag}] objects instead of plain IDs
- Web UI renders tag as a dim label next to each clone entry (clone 3 · default)
- Pre-existing fixes included in this commit:
  - console: tee all PTY output to clones/{id}/console.log for boot capture
  - network: destroy stale tap before recreating to avoid EBUSY errors
  - orchestrator: fix ubuntu systemd boot (custom fc-console.service, fstab,
    mask serial-getty udev dep, longer settle time, correct package list)
  - config: remove quiet/loglevel=0 from default boot args

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

orchestrator/web/terminal.html

@@ -62,6 +62,11 @@
     }
     .clone-entry button.destroy:hover { background: #2a1a1a; }
     .clone-entry button.destroy:disabled { color: #555; cursor: default; }
+    .clone-tag {
+      font-size: .72rem;
+      color: #666;
+      margin-left: .4rem;
+    }
 
     #index .none { color: #666; font-size: .9rem; }
 
@@ -183,11 +188,11 @@
       noneEl.style.display = 'none';
       const li = document.createElement('li');
       li.className = 'clone-entry';
-      li.dataset.id = c;
+      li.dataset.id = c.id;
       li.innerHTML =
-        `<a href="/?id=${c}">clone ${c}</a>` +
-        `<button class="destroy" title="Destroy clone ${c}">✕</button>`;
-      li.querySelector('.destroy').addEventListener('click', () => destroyClone(c, li));
+        `<a href="/?id=${c.id}">clone ${c.id}<span class="clone-tag">${c.tag}</span></a>` +
+        `<button class="destroy" title="Destroy clone ${c.id}">✕</button>`;
+      li.querySelector('.destroy').addEventListener('click', () => destroyClone(c.id, li));
       ul.appendChild(li);
     }