fix: full-width in-table section dividers in single-submission PDF

The approval-step field table reused .step-section-header on its <td>
section rows, but that class declares display:table and width:100% for
the outer step-header <div>. Those declarations overrode <td colspan="4">
and collapsed the section divider into the first column.

Introduces a .step-field-section class for the in-table divider that
styles cleanly on a <td>. Bulk PDF already used its own dedicated
.section-row class and was not affected.

Bumps version to 0.71.2.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: matteius

CHANGELOG.md

@@ -7,6 +7,18 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.71.2] - 2026-04-16
+
+### Fixed
+- **Single-submission PDF: in-table section dividers now span the full
+  table width.** The approval-step field table was reusing the outer
+  `.step-section-header` class on its `<td>` section rows. That class
+  carries `display: table; width: 100%;` (for the surrounding step
+  header `<div>`), which overrode the `<td colspan="4">` and collapsed
+  the section divider into the first column only. Split into a new
+  `.step-field-section` class that is table-row-safe. Bulk PDF was
+  unaffected (it already used a dedicated `.section-row` class).
+
 ## [0.71.1] - 2026-04-16
 
 ### Fixed

django_forms_workflows/templates/django_forms_workflows/submission_pdf.html

@@ -142,6 +142,16 @@
             text-align: right;
             white-space: nowrap;
         }
+        /* In-table section divider inside the step's field table. Must NOT
+           share display:table / width:100% from the outer header class —
+           those break <td colspan> and collapse the row to the first column. */
+        .step-field-section {
+            background-color: #1a3a52;
+            color: #fff;
+            font-weight: bold;
+            font-size: 9pt;
+            padding: 4pt 8pt;
+        }
         .step-badge {
             display: inline-block;
             padding: 2pt 7pt;
@@ -291,7 +301,7 @@ <h3 style="margin-top: 20px;">Attachments</h3>
     {% for row in section.fields %}
     {% if row.type == 'section' %}
     <tr>
-        <td colspan="4" class="step-section-header">{{ row.label }}</td>
+        <td colspan="4" class="step-field-section">{{ row.label }}</td>
     </tr>
     {% elif row.type == 'display_text' %}
     <tr>

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "django-forms-workflows"
-version = "0.71.1"
+version = "0.71.2"
 description = "Enterprise-grade, database-driven form builder with approval workflows and external data integration"
 license = "LGPL-3.0-only"
 readme = "README.md"