Almost Heaven Thunder parity pass completed.

Base used: AlmostHeaven_admin_login_admin_theme_fix_2026-03-24.zip
Source of parity features: tmr_fully_edited_contact_public_messages_removed.zip (Thunder)

What was merged from Thunder without replacing the current Heaven visual theme:
- richer admin dashboard layout and stats cards
- full admin tools for requests, comments, poll, about, schedule, DJs, friends, users, contact, applications, fans, events, top50, media, navigation, backup, player, radiostats
- admin helper library with stronger stable-key/block helpers
- admin web stats page
- icecast monitor page
- contact_messages and create_user compatibility aliases
- nowplaying.php, player.php, programs.php, session_init.php
- track logger and now-playing logger wired to Heaven stream config
- footer now includes track_logger include
- support data files for request status, poll storage and icecast cache

What was intentionally preserved from Heaven:
- current public styling/colors/background/header/footer
- current admin visual shell
- Heaven stream settings and auth paths
- Heaven content/data files

Extra note:
- copied Thunder backend files were reworded to Almost Heaven and patched to use Heaven's stream configuration where needed.
