Add missing CLI commands for search, feed/graph, age assurance, ozone moderation, and admin operations: - cli_search: search-actors, search-typeahead, search-starter-packs - cli_feed: get-actor-status, get-feed-generators, get-suggested-follows-by-actor, age-assurance (begin/get-config/get-state) - cli_ozone: moderation query-statuses/get-suggestions/get-label-definitions, team list-members, server get-config, communication list-templates, setting list-options, signature search-accounts, report query-reports, queue list-queues - cli_admin: search-accounts, get-account-info, get-subject-status, get-invite-codes, delete-account, disable/enable-account-invites, send-email Modularised main.c into 14 focused cli_* modules, keeping dispatch and shared helpers in main.c.