Split detailed design into docs/plans/ and keep roadmap as a status index;
align product, development, and README with the 1.x+ release line.
Co-authored-by: Cursor <cursoragent@cursor.com>
Add Docker HEALTHCHECK and mail-path /healthz liveness; env-doc regression
test; architecture.md and development.md; product.md and expanded security.md;
retire live specification.md to docs/archive/.
Co-Authored-By: Claude <claude-opus-5-thinking-high@noreply@anthropic.com>
mix
mixeme