Add Installation (MSI/binary/Docker), Running & Service Management (the CLI
commands incl. idempotent initialize/remove), and CI/CD (two-job release +
required REGISTRY_PASSWORD secret) sections; note the pure-Go build. Add
dashboard/rules/credentials/login/schedules screenshots and a Screenshots
section.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>