stitch pipeline câblé : DB + dispatcher + UI + fix subpath Caddy

- Table stitches (per_auv + cross_auv) avec cancel/retry API
- Dispatcher : PLY export auto (--save_ply), trigger stitch en cascade
  quand tous les jobs d'un AUV sont done
- UI : section stitch live depuis DB avec statuts/durées/boutons
- Fix : <base href="/cosma-qc/"> + chemins relatifs pour Caddy subpath
- open3d 0.19.0 installé sur gpu (.87)
- SSH key .82→.87 configurée, alias gpu ajouté sur .82

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

app/templates/_jobs_table.html

@@ -1,12 +1,3 @@
-{% macro duration(job) -%}
-{%- if job.started_at and job.finished_at -%}
-  {{ job._duration }}
-{%- elif job.started_at and not job.finished_at -%}
-  {{ job._duration }}
-{%- else -%} 
-{%- endif -%}
-{%- endmacro %}
-
 {% if not acquisitions %}
   <p class="muted">Aucune acquisition. Ingeste un dossier via <code>scripts/ingest.py</code>.</p>
 {% else %}
@@ -34,26 +25,56 @@
           </span>
           <span class="dur">{{ j._duration }}</span>
           {% if j.status in ('queued','extracting','running') %}
-            <button class="mini" hx-post="/jobs/{{ j.id }}/cancel" hx-target="#jobs-table">×</button>
+            <button class="mini" hx-post="jobs/{{ j.id }}/cancel" hx-target="#jobs-table">×</button>
           {% elif j.status == 'error' %}
-            <button class="mini" hx-post="/jobs/{{ j.id }}/retry" hx-target="#jobs-table">↻</button>
+            <button class="mini" hx-post="jobs/{{ j.id }}/retry" hx-target="#jobs-table">↻</button>
+          {% else %}
+            <span></span>
           {% endif %}
         </li>
         {% if j.error %}<li class="err-line">{{ j.error }}</li>{% endif %}
       {% endfor %}
       </ul>
 
-      {# Stitch section (placeholder — wired up once multi-job stitching lands) #}
       <div class="stitch-section">
         <div class="stitch-title">
           <span class="icon"><span class="sq">■</span></span>
           <span>stitch</span>
         </div>
-        <ul class="stitch-children">
-          <li class="sub pending"><span class="sq">■</span> pair GP1↔GP2 per AUV</li>
-          <li class="sub pending"><span class="sq">■</span> cross-AUV merge</li>
-          <li class="sub pending"><span class="sq">■</span> final PLY</li>
-        </ul>
+        {% if acq.stitches %}
+          <ul class="stitch-children">
+          {% for s in acq.stitches %}
+            <li class="sub {{ s.status }}">
+              <span class="icon stitch-icon">
+                {% if s.status == 'done' %}<span class="check ok">✓</span>
+                {% elif s.status == 'running' %}<span class="spin">↻</span>
+                {% elif s.status == 'error' %}<span class="err">✕</span>
+                {% else %}<span class="sq">■</span>{% endif %}
+              </span>
+              <span>
+                {% if s.level == 'per_auv' %}pair GP1↔GP2 {{ s.auv }}
+                {% else %}merge final{% endif %}
+                {% if s._duration %}<span class="dur muted"> — {{ s._duration }}</span>{% endif %}
+                {% if s.status == 'done' and s.output_ply %}
+                  <span class="ext" title="{{ s.output_ply }}">PLY</span>
+                {% endif %}
+              </span>
+              {% if s.status in ('queued','running') %}
+                <button class="mini" hx-post="stitches/{{ s.id }}/cancel" hx-target="#jobs-table">×</button>
+              {% elif s.status == 'error' %}
+                <button class="mini" hx-post="stitches/{{ s.id }}/retry" hx-target="#jobs-table">↻</button>
+              {% endif %}
+            </li>
+            {% if s.error %}<li class="err-line" style="padding-left:42px">{{ s.error[:120] }}</li>{% endif %}
+          {% endfor %}
+          </ul>
+        {% else %}
+          <ul class="stitch-children">
+            <li class="sub pending"><span class="sq">■</span> pair GP1↔GP2 per AUV</li>
+            <li class="sub pending"><span class="sq">■</span> cross-AUV merge</li>
+            <li class="sub pending"><span class="sq">■</span> final PLY</li>
+          </ul>
+        {% endif %}
       </div>
     </div>
   {% endfor %}

app/templates/index.html

@@ -4,8 +4,9 @@
   <meta charset="utf-8">
   <title>cosma-qc — dashboard</title>
   <meta name="viewport" content="width=device-width, initial-scale=1">
-  <script src="https://unpkg.com/htmx.org@2.0.4"></script>
-  <link rel="stylesheet" href="/static/style.css">
+  <base href="/cosma-qc/">
+  <script src="static/htmx.min.js"></script>
+  <link rel="stylesheet" href="static/style.css">
 </head>
 <body>
 <header>
@@ -13,13 +14,13 @@
   <span class="sub">post-acquisition QC · lingbot-map pipeline</span>
 </header>
 
-<section id="monitor" hx-get="/partials/monitor" hx-trigger="load, every 5s" hx-swap="innerHTML">
+<section id="monitor" hx-get="partials/monitor" hx-trigger="load, every 5s" hx-swap="innerHTML">
   <p class="muted">Chargement des workers…</p>
 </section>
 
 <section id="jobs">
   <h2>Jobs</h2>
-  <div id="jobs-table" hx-get="/partials/jobs" hx-trigger="load, every 3s" hx-swap="innerHTML">
+  <div id="jobs-table" hx-get="partials/jobs" hx-trigger="load, every 3s" hx-swap="innerHTML">
     <p class="muted">Chargement…</p>
   </div>
 </section>