Add Premtech Plugins author and Pivot Table plugin

content/authors/premtech-plugins.md

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+---
+name: Premtech Plugins
+slug: premtech-plugins
+github_url: https://github.com/ptplugins
+---
+
+Building high-quality plugins for the FilamentPHP ecosystem. Focused on data visualization and productivity tools for Laravel developers.

content/plugins/premtech-plugins-pivot-table.md

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+---
+anystack_id: a0d0fae8-321a-4fdb-9728-b2f459df68c6
+name: Pivot Table
+slug: premtech-plugins-pivot-table
+author_slug: premtech-plugins
+categories: [panel-builder, widget]
+description: Interactive pivot table widget with hierarchical rows, collapsible columns, multiple aggregations, and CSV export.
+discord_url:
+docs_url: https://raw.githubusercontent.com/ptplugins/filament-pivot-table-docs/main/README.md
+github_repository: ptplugins/filament-pivot-table
+has_dark_theme: true
+has_translations: true
+versions: [3]
+publish_date: 2026-01-25
+---