fix: use rawget for global bit library lookups and fix variable assignment in trainer fan club

src/core/game3/trainer_fan_club.lua

@@ -302,7 +302,9 @@ function TrainerFanClub.tryGainNewFanFromCounter(session, ctx, counterIdx)
     if timer + inc >= 20 then
       if TrainerFanClub.countFans(fanFlags) < 3 then
         TrainerFanClub.playerGainRandomTrainerFan(session, ctx)
-        _, gotInitialFans, fanFlags = TrainerFanClub.getFanClubData(session, ctx)
+        local _unused, newGotInitial, newFanFlags = TrainerFanClub.getFanClubData(session, ctx)
+        gotInitialFans = newGotInitial
+        fanFlags = newFanFlags
         timer = 0
       else
         timer = 20

src/import/gba/lz77.lua

@@ -12,7 +12,7 @@ do
   end
 end
 
-local bit = bit or bit32
+local bit = rawget(_G, "bit") or rawget(_G, "bit32")
 if not bit then
   local ok, mod = pcall(require, "bit")
   if ok and mod then bit = mod end

src/import/gba/pokemon_extract.lua

@@ -97,7 +97,7 @@ do
   end
 end
 
-local bit = bit or bit32
+local bit = rawget(_G, "bit") or rawget(_G, "bit32")
 if not bit then
   local ok, mod = pcall(require, "bit")
   if ok and mod then bit = mod end