Comfy Apps: 12-workflow image-gen web GUI + payment frontend

- Flask frontend + serialized GPU worker + BTCPay invoice/webhook
- 12 example images rendered from the real ComfyUI workflows
- fix: ipadapter workflow uses modern IPAdapter node (was broken IPAdapterApply)
- helper scripts: generate/optimize examples
- README with deploy recipe

templates/job.html

@@ -0,0 +1,24 @@
+<!doctype html>
+<html><head><meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1">
+<title>Job — Comfy Apps</title>
+<link rel="stylesheet" href="/static/style.css">
+<meta http-equiv="refresh" content="4"></head>
+<body>
+<div class="wrap">
+  <header><div class="logo"><a href="/">Comfy<span>Apps</span></a></div><div class="nav"><a href="/jobs">Gallery</a></div></header>
+  <div class="hero" style="padding-bottom:10px">
+    <h1>Job <span class="status {{ job['status'] }}">{{ job['status'] }}</span></h1>
+    <p class="muted">{{ job['app'].replace('_',' ').title() }} · created {{ '%.0f' % job['created_at'] }}</p>
+  </div>
+  {% if job['status'] == 'done' and job['result_file'] %}
+  <div class="result" style="max-width:900px;margin-bottom:40px">
+    <img src="/image/{{ job['result_file'] }}">
+  </div>
+  {% elif job['status'] == 'failed' %}
+  <div style="max-width:680px"><p style="color:var(--danger)">{{ job['error'] }}</p></div>
+  {% else %}
+  <div style="max-width:680px"><p class="muted">Working on it… the 4080 is rendering your image. This page refreshes automatically.</p></div>
+  {% endif %}
+  <p class="muted" style="padding-bottom:40px">{% if job['prompt'] %}<em>“{{ job['prompt'] }}”</em>{% endif %}</p>
+</div>
+</body></html>