fix: corrige cores CambioReal e Chart.js no admin

- Remove verde do header admin, usa roxo CambioReal (#5A0091)
- Corrige Chart.js movendo script para fora do <style>
- Adiciona parametro scripts ao buildHead()

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/ui-template.js

@@ -10,9 +10,9 @@ const cssVariables = `
     --primary-light: #9B2DE5;
     --primary-dark: #5A0091;
     --primary-bg: #F5EAFA;
-    --admin-accent: #2E7D32;
-    --admin-dark: #1B5E20;
-    --admin-bg: #E8F5E9;
+    --admin-accent: #5A0091;
+    --admin-dark: #3D0066;
+    --admin-bg: #F5EAFA;
     --bg: #F0F2F5;
     --card: #FFFFFF;
     --text: #1A1D23;
@@ -283,13 +283,15 @@ function buildFooter() {
  * Gera o head HTML com estilos base
  * @param {string} title - Título da página
  * @param {string} additionalCSS - CSS adicional
+ * @param {string} scripts - Scripts externos (opcional)
  */
-function buildHead(title, additionalCSS = '') {
+function buildHead(title, additionalCSS = '', scripts = '') {
   return `
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>${title} | BI - CCC</title>
     <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap" rel="stylesheet">
+    ${scripts}
     <style>
       ${cssVariables}
       ${headerCSS}