[feat] Inventory limits

[whitep4nth3r]

Ways we can limit:

• number of items
• wealth index

OR

• total number based on rarity accumulation (but this is a moving limit based on some factors)
  • e.g. you can have a total of 15000 rarity points
    • e.g. if your inventory is at max 15000, you want to claim a sapphire (1000), you need to drop 1000 worth of rarity
  • would maybe need to calculate a current median of the current user inventories
    • @matthewbrandt says i.e. if the user base average is 100 points, you are allowed 120 (20% over)
      • this would need to be a cron job that updates ever 24 hours, it’s too expensive to calculate every time someone wants to claim
    • there could be a moving limit per day