README: document today's shipped work (story reactions/comments, per-pet
insights dashboard, DESIGN.md/PRODUCT.md design system, admin panel visual
pass) in "What's Shipped" and the admin panel section.
docker/rolling-deploy.sh and start.sh were tracked as 100644 (no executable
bit) since this repo is worked from Windows, which never records it — every
fresh git pull onto the Linux NAS made them non-executable again. Fixed via
git update-index --chmod=+x so this doesn't recur.
Adds a dependency-free liveness endpoint (GET /api/health), a Docker
healthcheck against it, and docker/rolling-deploy.sh which rebuilds
the shared image once and restarts pawfeed-1/2/3 sequentially, gated
on each becoming healthy before moving to the next. Verified
zero-downtime via continuous curl monitoring through a full run
against production.
admin