feat: 新增租戶品牌客製化系統（Logo、主色系）、修正 hardcoded 顏色為 CSS 變數

resources/js/types/global.d.ts

@@ -11,6 +11,12 @@ export interface AuthUser {
     permissions: string[];
 }
 
+export interface Branding {
+    logo_url?: string | null;
+    primary_color?: string;
+    text_color?: string;
+}
+
 export interface PageProps {
     auth: {
         user: AuthUser | null;
@@ -19,6 +25,7 @@ export interface PageProps {
         success?: string;
         error?: string;
     };
+    branding?: Branding | null;
 }
 
 declare global {