ARGC-PromoteAndDemote

Added - Brought the promote/demote + persistent-XP system in line with Silence_QOL_Fixes. This addon is the standalone copy of that system, so its XP tracking, GM Promote/Demote actions, staff ranks, and two-step Wipe XP now use the same implementation as the QOL mod - including promote past the vanilla General cap into the Veteran/ Senior/Staff ranks, spectator/GM-faction fallbacks, the Reforger 1.7-safe hint RPC on SCR_PlayerController, and the hardened seasonal wipe. - WEEKLY XP DECAY Softer alternative to a full wipe: every player loses a percentage of their XP on a real-world schedule so nobody sits at max rank forever. Defaults: - Runs DAILY at 28%/day, which compounds to ~10% of a player's XP after 7 days (0.72 ^ 7 = 0.10). - Floor = 10% of the top MILITARY rank XP (General; bonus/staff ranks excluded), resolved live from the faction rank container. High/mid ranks slide down to this floor over the week; players already below it are left untouched. - Timing is anchored to a real-world timestamp stored in the save file header ("#DECAY=<unixSeconds>"), so it survives restarts and catches up cycles missed while the server was offline. - Optional DECAY_EXEMPT_AT_OR_ABOVE_XP protects GM-granted staff ranks from decay. Live XP of connected players is lowered to match immediately (no reconnect needed). Offline players decay in the save file directly. - Bundled the Promote and Demote menu icons