chore: rename cameleer3 to cameleer

Rename Java packages from net.siegeln.cameleer3 to net.siegeln.cameleer,
update all references in workflows, Docker configs, docs, and bootstrap.

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

ui/package.json

@@ -7,7 +7,7 @@
     "dev": "vite",
     "build": "tsc -b && vite build",
     "preview": "vite preview",
-    "postinstall": "node -e \"const fs=require('fs'),p='node_modules/@cameleer/design-system/assets/';if(fs.existsSync('public')){fs.copyFileSync(p+'cameleer3-logo.svg','public/favicon.svg')}\""
+    "postinstall": "node -e \"const fs=require('fs'),p='node_modules/@cameleer/design-system/assets/';if(fs.existsSync('public')){fs.copyFileSync(p+'cameleer-logo.svg','public/favicon.svg')}\""
   },
   "dependencies": {
     "@cameleer/design-system": "^0.1.45",