Toasts showed backend prose verbatim, with no code to translate
against and "application" where the UI says "service". Not-found,
missing-field, permission, conflict and agent-offline errors now come
from factories in app/exceptions.py that pair one fixed message with
a dotted code (not_found.<resource>, validation.required,
permission.denied, conflict.exists, agent.offline), so the client can
translate them.
The shared app-loading helpers and the apps, domains, servers,
databases and backups routes raise those errors instead of hand
shaping bodies, which drops the hand-shaped body count from 1132 to
850. Five routes picked an HTTP status by comparing error text; they
now key off a result code or a sentinel so rewording can't change a
status. Five broad excepts that echoed str(exc) now log the crash and
return the request id instead.
The explorer showed live sessions but nothing about which queries
cost the most or whether the cache was working. A container's new
Insights tab lists top queries by total time (pg_stat_statements,
performance_schema digests) with connections in use and the buffer
cache hit ratio, and says why a list is empty. PostgreSQL's
pg_stat_statements is switched on through the config tuner, keeping
existing preloads, so its rollback undoes it.
Juan Denis