feat: add fullscreen toggle to dynamic report

Overlay covers the full viewport while keeping the config panel
accessible. Press Escape or click the button to exit.

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

src/components/reports/DynamicReport.tsx

@@ -1,6 +1,6 @@
-import { useState } from "react";
+import { useState, useCallback, useEffect } from "react";
 import { useTranslation } from "react-i18next";
-import { Table, BarChart3, Columns } from "lucide-react";
+import { Table, BarChart3, Columns, Maximize2, Minimize2 } from "lucide-react";
 import type { PivotConfig, PivotResult } from "../../shared/types";
 import DynamicReportPanel from "./DynamicReportPanel";
 import DynamicReportTable from "./DynamicReportTable";
@@ -19,6 +19,19 @@ interface DynamicReportProps {
 export default function DynamicReport({ config, result, onConfigChange, dateFrom, dateTo }: DynamicReportProps) {
   const { t } = useTranslation();
   const [viewMode, setViewMode] = useState<ViewMode>("table");
+  const [fullscreen, setFullscreen] = useState(false);
+
+  const toggleFullscreen = useCallback(() => setFullscreen((prev) => !prev), []);
+
+  // Escape key exits fullscreen
+  useEffect(() => {
+    if (!fullscreen) return;
+    const handler = (e: KeyboardEvent) => {
+      if (e.key === "Escape") setFullscreen(false);
+    };
+    document.addEventListener("keydown", handler);
+    return () => document.removeEventListener("keydown", handler);
+  }, [fullscreen]);
 
   const hasConfig = (config.rows.length > 0 || config.columns.length > 0) && config.values.length > 0;
 
@@ -29,13 +42,19 @@ export default function DynamicReport({ config, result, onConfigChange, dateFrom
   ];
 
   return (
-    <div className="flex gap-4 items-start">
-      {/* Content area */}
-      <div className="flex-1 min-w-0 space-y-4">
-        {/* View toggle */}
-        {hasConfig && (
-          <div className="flex gap-1">
-            {viewButtons.map(({ mode, icon, label }) => (
+    <div
+      className={
+        fullscreen
+          ? "fixed inset-0 z-50 bg-[var(--background)] overflow-auto p-6"
+          : ""
+      }
+    >
+      <div className="flex gap-4 items-start">
+        {/* Content area */}
+        <div className="flex-1 min-w-0 space-y-4">
+          {/* Toolbar */}
+          <div className="flex items-center gap-1">
+            {hasConfig && viewButtons.map(({ mode, icon, label }) => (
               <button
                 key={mode}
                 onClick={() => setViewMode(mode)}
@@ -49,34 +68,43 @@ export default function DynamicReport({ config, result, onConfigChange, dateFrom
                 {label}
               </button>
             ))}
+            <div className="flex-1" />
+            <button
+              onClick={toggleFullscreen}
+              className="inline-flex items-center gap-1.5 px-3 py-1.5 rounded-lg text-xs font-medium bg-[var(--card)] border border-[var(--border)] text-[var(--foreground)] hover:bg-[var(--muted)] transition-colors"
+              title={fullscreen ? t("reports.pivot.exitFullscreen") : t("reports.pivot.fullscreen")}
+            >
+              {fullscreen ? <Minimize2 size={14} /> : <Maximize2 size={14} />}
+              {fullscreen ? t("reports.pivot.exitFullscreen") : t("reports.pivot.fullscreen")}
+            </button>
           </div>
-        )}
 
-        {/* Empty state */}
-        {!hasConfig && (
-          <div className="bg-[var(--card)] border border-[var(--border)] rounded-xl p-12 text-center text-[var(--muted-foreground)]">
-            {t("reports.pivot.noConfig")}
-          </div>
-        )}
+          {/* Empty state */}
+          {!hasConfig && (
+            <div className="bg-[var(--card)] border border-[var(--border)] rounded-xl p-12 text-center text-[var(--muted-foreground)]">
+              {t("reports.pivot.noConfig")}
+            </div>
+          )}
 
-        {/* Table */}
-        {hasConfig && (viewMode === "table" || viewMode === "both") && (
-          <DynamicReportTable config={config} result={result} />
-        )}
+          {/* Table */}
+          {hasConfig && (viewMode === "table" || viewMode === "both") && (
+            <DynamicReportTable config={config} result={result} />
+          )}
 
-        {/* Chart */}
-        {hasConfig && (viewMode === "chart" || viewMode === "both") && (
-          <DynamicReportChart config={config} result={result} />
-        )}
+          {/* Chart */}
+          {hasConfig && (viewMode === "chart" || viewMode === "both") && (
+            <DynamicReportChart config={config} result={result} />
+          )}
+        </div>
+
+        {/* Side panel */}
+        <DynamicReportPanel
+          config={config}
+          onChange={onConfigChange}
+          dateFrom={dateFrom}
+          dateTo={dateTo}
+        />
       </div>
-
-      {/* Side panel */}
-      <DynamicReportPanel
-        config={config}
-        onChange={onConfigChange}
-        dateFrom={dateFrom}
-        dateTo={dateTo}
-      />
     </div>
   );
 }

src/i18n/locales/en.json

@@ -378,7 +378,9 @@
       "viewChart": "Chart",
       "viewBoth": "Both",
       "noConfig": "Add fields to generate the report",
-      "noData": "No data for this configuration"
+      "noData": "No data for this configuration",
+      "fullscreen": "Full screen",
+      "exitFullscreen": "Exit full screen"
     },
     "help": {
       "title": "How to use Reports",

src/i18n/locales/fr.json

@@ -378,7 +378,9 @@
       "viewChart": "Graphique",
       "viewBoth": "Les deux",
       "noConfig": "Ajoutez des champs pour générer le rapport",
-      "noData": "Aucune donnée pour cette configuration"
+      "noData": "Aucune donnée pour cette configuration",
+      "fullscreen": "Plein écran",
+      "exitFullscreen": "Quitter plein écran"
     },
     "help": {
       "title": "Comment utiliser les Rapports",