fix: exempt own posts from timeline retention cleanup

fix: audit fixes for account ID, update_credentials, interactions, edit payload

chore: bump to 3.13.2

fix: settings page — remove duplicate heading, fix radio button macro usage

chore: bump to 3.13.1

chore: bump to 3.13.0 (settings admin page)

docs: document settings admin page and consumer pattern

feat: wire settings into all consumers

feat: add settings caching middleware for API routes

feat: register settings route and navigation

feat: add settings page template

feat: add settings GET/POST controller

feat: add ap_settings collection and settings helper

docs: document deferred home timeline reply visibility refinement

chore: bump to 3.12.5