Add Studio 2 caption jobs via Qwen2.5-VL GGUF on the host agent.

Exclusive llama-server load/unload on the 5080, queued Describe UI with resultText, Copy, and Use as prompt.

Co-authored-by: Cursor <cursoragent@cursor.com>

server/api/health.get.ts

@@ -48,7 +48,7 @@ export default defineEventHandler(async () => {
       host: comfy.host || '',
       queueRunning: queue.running,
       queuePending: queue.pending,
-      asleep: Boolean(control?.asleep) && !comfyReachable && !control?.yue2?.busy,
+      asleep: Boolean(control?.asleep) && !comfyReachable && !control?.yue2?.busy && !control?.caption?.busy,
       processUp: Boolean(control?.process ?? control?.processUp),
       lastActivityAt: control?.lastActivityAt || null,
       stats: comfy.ok ? comfy.stats : undefined
@@ -58,6 +58,11 @@ export default defineEventHandler(async () => {
       busy: Boolean(control?.yue2?.busy),
       backend: control?.yue2?.backend || 'yue2'
     },
+    caption: {
+      configured: Boolean(control?.caption?.configured),
+      busy: Boolean(control?.caption?.busy),
+      backend: control?.caption?.backend || 'llama.cpp'
+    },
     imageComfy: {
       configured: imageConfigured,
       ok: imageOk,