Export current bonus roll currency balance — bonusRollCurrencies table exists in extras.lua but is never used

[zke-lootpilot]

Summary

extras.lua already defines a bonus roll currency table, but nothing in the addon references it:

Simulationcraft.bonusRollCurrencies = {
  [3418] = 'Nebulous Voidcore',
  [3511] = '[DNT, Unused] Venomous Voidcore',
}

The profile export includes the bonus roll history (# bonus_roll_items=, via GetBonusRollItems()), which is great — but not the player's current balance of the roll currency. That balance is the last missing piece for tools to plan bonus rolls fully automatically from a paste: today the roll history imports fine, but every tool still has to ask the user to manually type how many coins they have.

For context: LootPilot (a bonus roll planner that consumes the addon export) already parses c:3418:<quantity> if it ever shows up, and I'd expect other tools could use it the same way — the bonus_roll_items comment in bonusrolls.lua suggests Raidbots also cares about the roll currency for season mapping.

Proposed change

A GetBonusRollCurrencies() mirroring the existing GetUpgradeCurrencies() pattern in core.lua, plus one export line next to the other currency comments:

function Simulationcraft:GetBonusRollCurrencies()
  local bonusRollCurrencies = {}
  for currencyId, currencyName in pairs(Simulationcraft.bonusRollCurrencies) do
    local currencyInfo = C_CurrencyInfo.GetCurrencyInfo(currencyId)
    if currencyInfo and currencyInfo.quantity > 0 then
      bonusRollCurrencies[#bonusRollCurrencies + 1] = table.concat({ "c", currencyId, currencyInfo.quantity }, ':')
    end
  end
  return table.concat(bonusRollCurrencies, '/')
end

Output: # bonus_roll_currencies=c:3418:4

One thought: for this particular currency it might be worth dropping the quantity > 0 filter, since "0 coins left" is meaningful information for a planner (as opposed to "unknown"). Happy to go either way.

Alternatively, if a new comment line feels unnecessary, just adding [3418] = 'Nebulous Voidcore' to Simulationcraft.upgradeCurrencies would make it ride the existing # upgrade_currencies= line — a one-line change.

I'm happy to submit a PR for whichever variant you prefer.