fix: merge main branch and renumber migration 027→037

Resolve 3 merge conflicts and renumber the automation_hooks migration
to follow main's migration chain (036_add_document_translation_fields).

Conflicts resolved:
- app/api/__init__.py: add automation_router alongside main's new routers
- app/utils/settings_service.py: add automation_hooks_enabled alongside compliance_enabled
- tests/conftest.py: add AutomationHook alongside AuditLog/ComplianceTemplate imports

Migration renumbered:
- 027_add_automation_hooks → 037_add_automation_hooks
- down_revision: 026_add_scheduled_jobs → 036_add_document_translation_fields

Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>

frontend/templates/file_detail.html

@@ -1095,10 +1095,18 @@
 
 {% block content %}
 <div class="detail-container">
-  <a href="/files" class="back-button" aria-label="Back to File List">
-    <i class="fas fa-arrow-left" aria-hidden="true"></i>
-    Back to File List
-  </a>
+  <div style="display:flex;align-items:center;gap:1rem;margin-bottom:1.5rem;flex-wrap:wrap;">
+    <a href="/files" class="back-button" style="margin-bottom:0;" aria-label="Back to File List">
+      <i class="fas fa-arrow-left" aria-hidden="true"></i>
+      Back to File List
+    </a>
+    {% if file %}
+    <a href="/files/{{ file.id }}" class="back-button" style="margin-bottom:0;" aria-label="View document for {{ file.original_filename }}">
+      <i class="fas fa-eye" aria-hidden="true"></i>
+      View Document
+    </a>
+    {% endif %}
+  </div>
 
   {% if error %}
   <div class="error-message">