refactor: import brand icons directly from design-system package

- Sidebar and sign-in logos use Vite import from @cameleer/design-system
- HTML favicons copied by postinstall script (gitignored)
- Remove manually copied PNGs from repo
- Clean up SecurityConfig permitAll (bundled assets under /_app/**)

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

.gitignore

@@ -21,3 +21,7 @@ Thumbs.db
 
 # Worktrees
 .worktrees/
+
+# Generated by postinstall from @cameleer/design-system
+ui/public/favicon-32.png
+ui/public/favicon-192.png

src/main/java/net/siegeln/cameleer/saas/config/SecurityConfig.java

@@ -45,7 +45,7 @@ public class SecurityConfig {
                         .requestMatchers("/api/config").permitAll()
                         .requestMatchers("/", "/index.html", "/login", "/callback",
                                 "/environments/**", "/license", "/admin/**").permitAll()
-                        .requestMatchers("/_app/**", "/favicon.ico", "/favicon.svg", "/favicon-32.png", "/favicon-192.png", "/cameleer-logo-48.png", "/logo.svg", "/logo-dark.svg").permitAll()
+                        .requestMatchers("/_app/**", "/favicon.ico", "/favicon-32.png", "/favicon-192.png", "/logo.svg", "/logo-dark.svg").permitAll()
                         .anyRequest().authenticated()
                 )
                 .oauth2ResourceServer(oauth2 -> oauth2.jwt(jwt ->

ui/package.json

@@ -6,7 +6,8 @@
   "scripts": {
     "dev": "vite",
     "build": "tsc -b && vite build",
-    "preview": "vite preview"
+    "preview": "vite preview",
+    "postinstall": "node -e \"const fs=require('fs'),p='node_modules/@cameleer/design-system/assets/';[['cameleer3-32.png','public/favicon-32.png'],['cameleer3-192.png','public/favicon-192.png']].forEach(([s,d])=>fs.copyFileSync(p+s,d))\""
   },
   "dependencies": {
     "@cameleer/design-system": "0.1.33",

ui/sign-in/src/SignInPage.tsx

@@ -1,5 +1,6 @@
 import { type FormEvent, useMemo, useState } from 'react';
 import { Card, Input, Button, Alert, FormField } from '@cameleer/design-system';
+import cameleerLogo from '@cameleer/design-system/assets/cameleer3-48.png';
 import { signIn } from './experience-api';
 import styles from './SignInPage.module.css';
 
@@ -56,7 +57,7 @@ export function SignInPage() {
       <Card className={styles.card}>
         <div className={styles.loginForm}>
           <div className={styles.logo}>
-            <img src="/cameleer-logo-48.png" alt="" className={styles.logoImg} />
+            <img src={cameleerLogo} alt="" className={styles.logoImg} />
             cameleer3
           </div>
           <p className={styles.subtitle}>{subtitle}</p>

ui/src/components/Layout.tsx

@@ -8,11 +8,12 @@ import {
 import { useAuth } from '../auth/useAuth';
 import { useScopes } from '../auth/useScopes';
 import { EnvironmentTree } from './EnvironmentTree';
+import cameleerLogo from '@cameleer/design-system/assets/cameleer3-48.png';
 
 function CameleerLogo() {
   return (
     <img
-      src="/platform/cameleer-logo-48.png"
+      src={cameleerLogo}
       alt=""
       width="24"
       height="24"