Store the selected tab of the admin settings page in the URL query string under the tab parameter. Defend against invalid values by validating it against the list of known tabs.
Replace all manual bg-indigo and text-indigo overrides with standard CSS variables such as bg-primary/10 and text-primary across common settings modules to support theme integration.
Move route-specific admin components from components/common/admin into
app/(main)/admin/<feature>/components/. Split AdminService god object into
domain services, fix UploadService to use BaseService, add AdminUploadService,
consolidate DB export into DbManageService, and migrate consumers to the
unified services entry.
Add next/dynamic lazy loading for database, logs, and settings heavy
modules; migrate access-logs and task-executions to React Query; parallelize
login auth-sources with public config; consolidate users table tooltips;
enable lazy image decoding; and replace barrel @/lib/services imports with
direct module paths.
ryan