- Remove .prettierrc (dead config, Biome replaces Prettier) - Rename lighthouserc.json to lighthouserc.cjs with module.exports for ESM compat - Add logger.warn to empty catch blocks in auth, register, site-settings, prisma-cache, redis, security, rate-limit - Unify ActionResult type: action-helper.ts uses 'ok' consistent with safe-action-shared.ts - Add noUnusedLocals + noUnusedParameters to tsconfig + fix 25 pre-existing unused vars - Replace barrel export src/types/index.ts with direct @/types/common imports - Make trustHost conditional (development only) in auth.ts - Add pre-flight URL validation to update-Nitrov3.sh to catch image.library.url misconfigurations - Improve NITRO_IMAGE_LIBRARY_URL content validation in pre-flight & post-compute checks