feat(#35): Handle wide tables better in PDF preview

legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/application_form/ApplicationFormFormatService.kt

@@ -77,11 +77,14 @@ class ApplicationFormFormatService(
                                     subtitle = LatexEscaper.escape(subsection.subtitle ?: ""),
                                     elements =
                                         subsection.elements.map { element ->
+                                            val isTable = element.type.name == "TABLE"
+                                            val tableInfo = if (isTable) renderTableValue(element) else null
                                             LatexFormElement(
                                                 title = LatexEscaper.escape(element.title ?: ""),
                                                 description = LatexEscaper.escape(element.description ?: ""),
-                                                value = renderElementValue(element),
-                                                isTable = element.type.name == "TABLE",
+                                                value = tableInfo?.first ?: renderElementValue(element),
+                                                isTable = isTable,
+                                                isWideTable = tableInfo?.second ?: false,
                                             )
                                         },
                                 )
@@ -131,13 +134,17 @@ class ApplicationFormFormatService(
                 if (element.options.any { it.value == "true" }) "Ja" else "Nein"
             }
             "TABLE" -> {
-                renderTableValue(element)
+                renderTableValue(element).first
             }
             else -> "Keine Auswahl getroffen"
         }
 
-    private fun renderTableValue(element: FormElementSnapshotDto): String {
-        if (element.options.isEmpty()) return "Keine Daten"
+    /**
+     * Renders a table element to LaTeX.
+     * @return Pair of (LaTeX string, isWideTable flag)
+     */
+    private fun renderTableValue(element: FormElementSnapshotDto): Pair<String, Boolean> {
+        if (element.options.isEmpty()) return "Keine Daten" to false
 
         val objectMapper = jacksonObjectMapper()
         val headers = element.options.map { LatexEscaper.escape(it.label ?: "") }
@@ -152,10 +159,15 @@ class ApplicationFormFormatService(
             }
 
         val rowCount = columnData.maxOfOrNull { col -> col.size } ?: 0
-        if (rowCount == 0) return "Keine Daten"
+        if (rowCount == 0) return "Keine Daten" to false
+
+        val columnCount = headers.size
+        val isWideTable = columnCount > WIDE_TABLE_COLUMN_THRESHOLD
 
         // Use tabularx with Y columns (auto-wrapping) for flexible width distribution
         // Y is defined as >{\raggedright\arraybackslash}X in the template
+        // For wide tables, use \linewidth (works correctly inside landscape environment)
+        val tableWidth = if (isWideTable) "\\linewidth" else "\\textwidth"
         val columnSpec = headers.joinToString("") { "Y" }
         val headerRow = headers.joinToString(" & ") { "\\textbf{$it}" }
         val dataRows =
@@ -166,8 +178,13 @@ class ApplicationFormFormatService(
                 }
             }
 
-        return buildString {
-            appendLine("\\begin{tabularx}{\\textwidth}{$columnSpec}")
+        val latexContent = buildString {
+            if (isWideTable) {
+                // Use smaller font and tighter column spacing for wide tables
+                appendLine("\\footnotesize")
+                appendLine("\\setlength{\\tabcolsep}{2pt}")
+            }
+            appendLine("\\begin{tabularx}{$tableWidth}{$columnSpec}")
             appendLine("\\toprule")
             appendLine("$headerRow \\\\")
             appendLine("\\midrule")
@@ -176,7 +193,19 @@ class ApplicationFormFormatService(
             }
             appendLine("\\bottomrule")
             appendLine("\\end{tabularx}")
+            if (isWideTable) {
+                // Reset to normal settings after the table
+                appendLine("\\normalsize")
+                appendLine("\\setlength{\\tabcolsep}{6pt}")
+            }
         }
+
+        return latexContent to isWideTable
+    }
+
+    companion object {
+        /** Tables with more than this number of columns are rendered in landscape mode */
+        private const val WIDE_TABLE_COLUMN_THRESHOLD = 6
     }
 
     private fun filterVisibleElements(snapshot: ApplicationFormSnapshotDto): ApplicationFormSnapshotDto {

legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/application_form/export/latex/LatexExportModel.kt

@@ -29,4 +29,5 @@ data class LatexFormElement(
     val description: String?,
     val value: String,
     val isTable: Boolean = false,
+    val isWideTable: Boolean = false,
 )

legalconsenthub-backend/src/main/resources/templates/application_form_latex_template.tex

@@ -18,10 +18,16 @@
 \usepackage{tabularx}
 \usepackage{array}
 \usepackage{booktabs}
+\usepackage{pdflscape}
+\usepackage{scrlayer-scrpage}
+\usepackage{geometry}
 
 % Define column type for auto-wrapping text
 \newcolumntype{Y}{>{\raggedright\arraybackslash}X}
 
+% Page style for landscape pages - no header/footer to maximize table space
+\newpagestyle{landscapestyle}{}{}
+
 \hypersetup{
     colorlinks=true,
     linkcolor=black,
@@ -74,6 +80,21 @@ Dieses Dokument enthält die Details der Betriebsvereinbarung "[[${applicationFo
 [/]
 
 [# th:each="element : ${subsection.elements}"]
+[# th:if="${element.isTable && element.isWideTable}"]
+\newgeometry{left=1cm,right=1cm,top=1cm,bottom=1cm}
+\begin{landscape}
+\thispagestyle{landscapestyle}
+\paragraph{[[${element.title}]]}
+[# th:if="${element.description}"]
+\textit{\small [[${element.description}]]}
+[/]
+\vspace{0.5em}
+\noindent
+[(${element.value})]
+\end{landscape}
+\restoregeometry
+[/]
+[# th:if="${!(element.isTable && element.isWideTable)}"]
 \paragraph{[[${element.title}]]}
 [# th:if="${element.description}"]
 \textit{\small [[${element.description}]]}
@@ -95,6 +116,7 @@ Dieses Dokument enthält die Details der Betriebsvereinbarung "[[${applicationFo
 [/]
 [/]
 [/]
+[/]
 
 \vspace{3cm}