Rename AI Tycoon to Token Empire across entire codebase

Full rebrand: UI display text, package scope (@ai-tycoon/* -> @token-empire/*),
localStorage keys, Docker/CI image paths, database names, and documentation.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

apps/web/package.json

@@ -1,5 +1,5 @@
 {
-  "name": "@ai-tycoon/web",
+  "name": "@token-empire/web",
   "private": true,
   "version": "0.0.1",
   "type": "module",
@@ -10,8 +10,8 @@
     "preview": "vite preview"
   },
   "dependencies": {
-    "@ai-tycoon/shared": "workspace:*",
-    "@ai-tycoon/game-engine": "workspace:*",
+    "@token-empire/shared": "workspace:*",
+    "@token-empire/game-engine": "workspace:*",
     "react": "^19.1.0",
     "react-dom": "^19.1.0",
     "recharts": "^2.15.0",
@@ -19,7 +19,7 @@
     "lucide-react": "^0.475.0"
   },
   "devDependencies": {
-    "@ai-tycoon/tsconfig": "workspace:*",
+    "@token-empire/tsconfig": "workspace:*",
     "@types/react": "^19.1.0",
     "@types/react-dom": "^19.1.0",
     "@vitejs/plugin-react": "^4.4.0",