Add Dockerization, i18n, auth UI redesign and update docs

Initial scaffold: Next.js 16 + TypeScript + Tailwind CSS

docs: documentation update

fix: add device_name to UserRegistered/UserLoggedIn events, use get_client_ip consistently

docs: add design doc and implementation plan for audit full information

docs: update README with full audit information (plain IP, user_agent, device name)

fix: add ip_address assertions to test_audit_log_stores_user_agent

docs(scaling): remove obsolete SCALING.md

docs(repo): add SECURITY, CONTRIBUTING and CODE_OF_CONDUCT

fix(make): force localhost for test targets when .env points to Docker hosts

remove: remove superpowers docs

feat(build): add Makefile with styled CLI help and project commands

chore: remove playwright debug artifacts from repo

fix(security): allow Swagger UI CDN resources in CSP

fix(docker): assign unique project names and avoid image pull warnings

fix(docker): ensure correct commands and scale support for compose app

feat(docker): split compose into infra and app, update Dockerfile and README

docs(spec): add docker compose infra/app split design

fix(ci/cd): fix GitVerse CI/CD workflows

Use astral-sh/setup-uv action instead of pip/pipx

Replace pip with pipx for uv install (avoids PEP 668)

Use actions/setup-python to avoid PEP 668 externally-managed error

Fix uv install with --break-system-packages for PEP 668

Fix uv install on PEP 668 restricted runners