WGA Priority Loot

Added

• A search box in the /rcpl prio window (#49). Typing filters the list in real time down to items whose name matches, or that have a ranked player whose name matches -- no more scrolling through 90+ items and dozens of names to find your own priority on something mid-raid. Not filterable by boss name -- the imported data has no boss/encounter association today.

Fixed

• A new raid leader could be blocked from importing right after a leadership pass (#50). RCPLPrioSync:IsLocalPlayerLeader() resolved "am I the leader" by comparing addon.Utils:UnitName() strings for a raid/party unit token against the local player -- but that helper (RCLootCouncil's own Utils.lua) caches its resolved name-realm per literal unit token forever, with no invalidation when a roster change reassigns who's sitting at that index. A stale cached name for the leader's raidN slot could then never string-match the local player even though they genuinely were the new leader. Leader identity is now checked with UnitIsUnit(unit, "player"), which re-resolves both sides fresh every call instead of relying on that cache.
• The blocked-import message misattributed a stale timestamp to the leader. "Only the raid/party leader can import. <leader> already imported at <time>" was actually reporting the local client's own RCPL_DB.importedAt (a prior self-import or stale sync), not the leader's -- misleading whenever those two didn't match. It now just names the leader instead of guessing at a timestamp it doesn't actually have.