Tasks

• [x] Record existing verification and bundle-size baseline.
• [x] Migrate lint rules, formatting, scripts, and pre-commit hooks.
• [x] Upgrade Vite, React plugin, Vitest, and native TypeScript checking.
• [x] Align Node versions for development, CI, Docker, and Pages.
• [x] Preserve eager page imports and existing routing/authentication coverage.
• [x] Audit dependency and visual compatibility.
• [x] Verify quality checks, tests, code generation, and static/Docker builds.
• [x] Document tooling, deployment settings, and measured build performance.
• [x] Make the default Task command list workflows without installing dependencies.