Playerbot: BotGear addon — use a non-zero sequence number

The server rejects any PBC frame with seq == 0 (AddonControl envelope
check), so GEAR_BAGS_REQ/GEAR_EQUIP_REQ were silently dropped and the panel
rendered with no data. Send uses an incrementing seq like PlayerbotControl.

src/modules/PlayerbotV2/Addon/BotGear/BotGear.lua

@@ -38,10 +38,12 @@ local EQUIP_SLOT_NAMES = {
 }
 
 -- Comms -------------------------------------------------------------
+local seqCounter = 1  -- server rejects frames with seq == 0
 local function Send(mtype, ...)
     local args = {...}
     local body = table.concat(args, "|")
-    local f = string.format("1|00000000|1|1|%s|%s", mtype, body)
+    local f = string.format("1|%08x|1|1|%s|%s", seqCounter, mtype, body)
+    seqCounter = (seqCounter % 0xFFFFFFFF) + 1
     C_ChatInfo.SendAddonMessage(PREFIX, f, "WHISPER", botName or UnitName("player"))
 end