The ApexCharts toolbar stays hidden (DialectTheme), so the dashboard had no
export at all. Adds an "Als CSV exportieren" entry to the per-widget action
menu, served server-side from the same data the widget renders.
- CsvExport: the export table plus its CSV dialect (';' separator, CRLF,
UTF-8 BOM, locale-formatted numbers) and file-name slugging.
- GridStackItem.setActionDownload: turns a menu entry's caption into an
anchor over a DownloadHandler, so an entry can hand out a file.
- WidgetRegistry: keeps each widget's query, not only its result, so the
Export hook re-runs it — an export always matches the current filter.
- DashboardView: builds the download on click; file name is widget title +
period (revenue-trend-half-year.csv).
Chart image export is left as the follow-up the issue calls optional.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0124BiJikbhbiEsNfJxdWM69
Pit Friedrich