add i18n translation automation

.gitignore

@@ -38,6 +38,7 @@ yarn.lock
 /playwright/.cache/
 
 .env
+# Never commit API keys (i18n sync, local dev). Use shell exports instead of committing .env.local.
 .env.local
 .env.production
 .env.development

.husky/pre-commit

@@ -1,6 +1,8 @@
 #!/usr/bin/env sh
 npx lint-staged
 
+npm run check:i18n
+
 # Run Python pre-commit checks if backend files are staged
 if git diff --cached --name-only | grep -q "^backend/"; then
   echo "Running backend pre-commit checks..."

package.json

@@ -43,7 +43,9 @@
     "test:watch": "vitest",
     "test:e2e": "vitest run --config vitest.config.ts",
     "test:coverage": "vitest run --coverage",
-    "check:i18n": "node scripts/check-i18n-locale-parity.js",
+    "check:i18n": "node scripts/check-i18n-schema.js",
+    "check:i18n:strict": "node scripts/check-i18n-schema.js --fail-on-unused --fail-on-untranslated",
+    "i18n:sync": "node scripts/sync-i18n-translations.js",
     "check:design-token-usage": "node scripts/check-design-token-usage.mjs",
     "check:design-tokens": "npm run verify:theme && npm run check:design-token-usage",
     "verify:theme": "vite-node scripts/verify-theme-tokens.ts",