Docker baseline before Phase 6 modernization

🔄 Generated with [Claude Code](https://claude.ai/code)

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

frontend/package.json

@@ -44,7 +44,7 @@
     "eslint-plugin-react-refresh": "^0.4.4",
     "postcss": "^8.4.32",
     "tailwindcss": "^3.3.6",
-    "typescript": "^5.3.2",
+    "typescript": "^5.6.3",
     "vite": "^5.0.6",
     "vitest": "^1.0.1",
     "@testing-library/react": "^16.0.0",

frontend/tsconfig.json

@@ -1,8 +1,8 @@
 {
   "compilerOptions": {
-    "target": "ES2020",
+    "target": "ES2022",
     "useDefineForClassFields": true,
-    "lib": ["ES2020", "DOM", "DOM.Iterable"],
+    "lib": ["ES2022", "DOM", "DOM.Iterable"],
     "module": "ESNext",
     "skipLibCheck": true,
     "moduleResolution": "bundler",
@@ -18,6 +18,11 @@
     "allowSyntheticDefaultImports": true,
     "esModuleInterop": true,
     "forceConsistentCasingInFileNames": true,
+    "exactOptionalPropertyTypes": true,
+    "noImplicitOverride": true,
+    "noImplicitReturns": true,
+    "noPropertyAccessFromIndexSignature": true,
+    "noUncheckedIndexedAccess": true,
     "baseUrl": ".",
     "paths": {
       "@/*": ["src/*"],