Add a set of guest-facing and operator-facing features that make the
deployment-strategy demos (recreate, rolling, canary) more visual:
- Emoji reactions (heart/tada/thumbsup/smile): visitors react without an
account, a first-party cookie keeps counts honest, the tally streams
live to every tab over SSE. Backed by a new reactions table with an
idempotent upsert; whitelisted emoji so the endpoint can't be abused.
- Light & dark themes: the wall follows the OS preference, visitors can
toggle it (persisted locally), and a moderator can force a theme for
everyone from the admin console, pushed live over SSE.
- Per-replica request counter: a middleware tallies requests answered by
each replica; surfaced in /healthz, /api/info and the admin replica
table. Under load-balancing the counts diverge, and a rolling update
resets them one container at a time — the rollout made visible.
- Rolling-update wave in the Chaos lab: bounces replicas one at a time
(via the crash endpoint) while polling the replica table, so a training
session can watch each replica reset and rejoin — what a rolling update
looks like from the inside.
- Admin console: reactions tile, per-replica Requests column, reaction
tallies in moderation, and a wall-theme setting.
- Favicon + /favicon.ico redirect.
Tests cover reactions (idempotency, tallies, whitelist) and the theme
setting round-trip.
Akili-Task: tsk_xgg6sfuzkzymyc6gstr4
Akili-Agent: goldfish
Akili