feat: Phase 4 — viewer enrichi, non-cumul CCAM, fusion multi-PDFs + rebuild FAISS (21 141 vecteurs)

- Viewer : badges compteurs (DAS, actes, alertes, CMA), raisonnement LLM pliable, regroupement CCAM, navigation patient, alertes NON-CUMUL en rouge
- Non-cumul CCAM : 3 règles heuristiques (même base, même regroupement/jour, paires incompatibles)
- Fusion multi-PDFs : merge_dossiers() avec priorité Trackare, spécificité CIM-10, déduplication, champ source_files
- Index FAISS reconstruit : 21 141 vecteurs (CCAM dict 8 257 + CIM-10 alpha 306)
- 192 tests unitaires passent

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

src/viewer/templates/detail.html

@@ -4,8 +4,16 @@
 {% block sidebar %}
 <div class="group-title">Navigation</div>
 <a href="/">Retour à la liste</a>
+{% if siblings %}
+<div class="group-title" style="margin-top:1rem;">{{ current_group }}</div>
+{% for sib in siblings %}
+  <a href="/dossier/{{ sib.path_rel }}" {% if sib.path_rel == filepath %}style="color:#e2e8f0;border-left-color:#3b82f6;background:#1e293b;"{% endif %}>
+    {{ sib.name }}
+  </a>
+{% endfor %}
+{% endif %}
 <div class="group-title" style="margin-top:1.5rem;">Actions</div>
-<button id="reprocess-btn" style="width:100%;padding:0.6rem;background:#3b82f6;color:white;border:none;border-radius:0.375rem;cursor:pointer;font-size:0.875rem;font-weight:600;margin-bottom:0.5rem;">🔄 Relancer l'étude</button>
+<button id="reprocess-btn" style="width:100%;padding:0.6rem;background:#3b82f6;color:white;border:none;border-radius:0.375rem;cursor:pointer;font-size:0.875rem;font-weight:600;margin-bottom:0.5rem;">Relancer l'étude</button>
 <div id="reprocess-status" style="font-size:0.75rem;padding:0.25rem;"></div>
 {% endblock %}
 
@@ -29,6 +37,16 @@
     </div>
     {% endif %}
   </div>
+  {% if dossier.source_files %}
+  <div class="source-files" style="margin-top:0.75rem;">
+    <label style="font-size:0.7rem;color:#64748b;text-transform:uppercase;letter-spacing:0.05em;font-weight:600;">Documents sources</label>
+    <div style="margin-top:0.25rem;">
+      {% for sf in dossier.source_files %}
+        <code>{{ sf }}</code>{% if not loop.last %}, {% endif %}
+      {% endfor %}
+    </div>
+  </div>
+  {% endif %}
 </div>
 
 {# ---- Séjour ---- #}
@@ -57,7 +75,11 @@
   <h3 style="color:#c2410c;">Alertes de codage ({{ dossier.alertes_codage|length }})</h3>
   <ul style="margin:0;padding-left:1.2rem;">
     {% for alerte in dossier.alertes_codage %}
-      <li style="font-size:0.85rem;color:#9a3412;margin-bottom:0.25rem;">{{ alerte }}</li>
+      {% if alerte.startswith('NON-CUMUL') %}
+        <li class="alerte-noncumul" style="font-size:0.85rem;margin-bottom:0.25rem;">{{ alerte }}</li>
+      {% else %}
+        <li class="alerte-standard" style="font-size:0.85rem;margin-bottom:0.25rem;">{{ alerte }}</li>
+      {% endif %}
     {% endfor %}
   </ul>
 </div>
@@ -73,13 +95,17 @@
     <span class="badge" style="background:#dbeafe;color:#1d4ed8;font-size:0.85rem;">{{ dp.cim10_suggestion }}</span>
     {{ dp.cim10_confidence | confidence_badge }}
     {% if dp.est_cma %}<span class="badge" style="background:#fee2e2;color:#dc2626;font-size:0.75rem;">CMA</span>{% endif %}
-    {% if dp.niveau_severite == 'severe' %}<span class="badge" style="background:#fee2e2;color:#dc2626;font-size:0.75rem;">Sévère</span>
-    {% elif dp.niveau_severite == 'modere' %}<span class="badge" style="background:#fef3c7;color:#92400e;font-size:0.75rem;">Modéré</span>
-    {% elif dp.niveau_severite == 'leger' %}<span class="badge" style="background:#d1fae5;color:#065f46;font-size:0.75rem;">Léger</span>{% endif %}
+    {{ dp.niveau_severite | severity_badge }}
   {% endif %}
   {% if dp.justification %}
     <div style="margin-top:0.5rem;font-size:0.8rem;color:#475569;">{{ dp.justification }}</div>
   {% endif %}
+  {% if dp.raisonnement %}
+  <details style="margin-top:0.5rem;">
+    <summary>Raisonnement LLM</summary>
+    <pre>{{ dp.raisonnement }}</pre>
+  </details>
+  {% endif %}
   {% if dp.sources_rag %}
   <details>
     <summary>Sources RAG ({{ dp.sources_rag|length }})</summary>
@@ -107,17 +133,22 @@
         </td>
         <td>{% if das.cim10_suggestion %}<span class="badge" style="background:#dbeafe;color:#1d4ed8;">{{ das.cim10_suggestion }}</span>{% endif %}</td>
         <td>{{ das.cim10_confidence | confidence_badge }}</td>
-        <td>
-          {% if das.niveau_severite == 'severe' %}<span class="badge" style="background:#fee2e2;color:#dc2626;">Sévère</span>
-          {% elif das.niveau_severite == 'modere' %}<span class="badge" style="background:#fef3c7;color:#92400e;">Modéré</span>
-          {% elif das.niveau_severite == 'leger' %}<span class="badge" style="background:#d1fae5;color:#065f46;">Léger</span>
-          {% else %}—{% endif %}
-        </td>
+        <td>{{ das.niveau_severite | severity_badge }}</td>
         <td style="font-size:0.8rem;color:#475569;">{{ das.justification or '' }}</td>
       </tr>
+      {% if das.raisonnement %}
+      <tr>
+        <td colspan="5" style="padding:0 0.75rem 0.5rem;">
+          <details>
+            <summary>Raisonnement LLM</summary>
+            <pre>{{ das.raisonnement }}</pre>
+          </details>
+        </td>
+      </tr>
+      {% endif %}
       {% if das.sources_rag %}
       <tr>
-        <td colspan="4" style="padding:0 0.75rem 0.5rem;">
+        <td colspan="5" style="padding:0 0.75rem 0.5rem;">
           <details>
             <summary>Sources RAG ({{ das.sources_rag|length }})</summary>
             {% for src in das.sources_rag %}
@@ -139,12 +170,19 @@
 <div class="card section">
   <h3>Actes CCAM ({{ dossier.actes_ccam|length }})</h3>
   <table>
-    <thead><tr><th>Texte</th><th>Code CCAM</th><th>Date</th><th>Validité</th></tr></thead>
+    <thead><tr><th>Texte</th><th>Code CCAM</th><th>Regroupement</th><th>Date</th><th>Validité</th></tr></thead>
     <tbody>
     {% for a in dossier.actes_ccam %}
       <tr>
         <td>{{ a.texte }}</td>
         <td>{% if a.code_ccam_suggestion %}<span class="badge" style="background:#e0e7ff;color:#3730a3;">{{ a.code_ccam_suggestion }}</span>{% endif %}</td>
+        <td>
+          {% if a.code_ccam_suggestion and ccam_dict.get(a.code_ccam_suggestion, {}).get('regroupement') %}
+            <span class="badge badge-regroup">{{ ccam_dict[a.code_ccam_suggestion]['regroupement'] }}</span>
+          {% else %}
+            —
+          {% endif %}
+        </td>
         <td>{{ a.date or '' }}</td>
         <td>
           {% if a.validite == 'valide' %}<span class="badge" style="background:#d1fae5;color:#065f46;">Valide</span>
@@ -246,28 +284,28 @@
 document.getElementById('reprocess-btn').addEventListener('click', async () => {
   const btn = document.getElementById('reprocess-btn');
   const status = document.getElementById('reprocess-status');
-  
+
   btn.disabled = true;
   btn.textContent = 'Traitement en cours...';
   status.textContent = '';
   status.style.color = '#3b82f6';
-  
+
   try {
     const response = await fetch('/reprocess/{{ filepath }}', { method: 'POST' });
     const data = await response.json();
-    
+
     if (data.ok) {
-      status.textContent = '✓ ' + data.message;
+      status.textContent = data.message;
       status.style.color = '#16a34a';
       setTimeout(() => location.reload(), 1500);
     } else {
-      status.textContent = '✗ ' + (data.error || 'Erreur');
+      status.textContent = (data.error || 'Erreur');
       status.style.color = '#dc2626';
       btn.disabled = false;
       btn.textContent = 'Relancer l\'étude';
     }
   } catch (err) {
-    status.textContent = '✗ Erreur réseau';
+    status.textContent = 'Erreur réseau';
     status.style.color = '#dc2626';
     btn.disabled = false;
     btn.textContent = 'Relancer l\'étude';