feat: funciones frontend React/TS — componentes UI, hooks Wails, charts y tipos

Componentes React reutilizables: card, dialog, tabs, select, alert, badge, button, input, label,
skeleton, tooltip, progress_bar, page_header, form_field, settings_page, crud_page, analytics_page,
dashboard_layout. Charts: area, bar, line, sparkline, kpi_card, chart_container.
Hooks Wails: use_wails_query, use_wails_mutation, use_wails_stream, use_wails_event, use_animated_canvas.
Funciones core: cn, format_compact, chart_colors, get_series_color, wails_cache, theme_config_to_colors.
Tipos: chart_series, wails_ipc, theme_config, component_variants.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/functions/core/cn.ts

@@ -0,0 +1,6 @@
+import { clsx, type ClassValue } from "clsx"
+import { twMerge } from "tailwind-merge"
+
+export function cn(...inputs: ClassValue[]): string {
+  return twMerge(clsx(inputs))
+}