Money Checker notes

• The mod watches incoming chat/game messages for balance lines (Balance/Money/Cash/Coins) and common payment phrases from Donut SMP-style economies (paid by, received from, sent you). It remembers the last seen balance and treats any increase or matched payment message as a deposit.
• When a deposit is detected, the first Book and Quill in your inventory is updated automatically via a book edit packet. The entry looks like Name +$amount (bal $balance) and is appended to the current page when space allows.
• If no Book and Quill is found, a client-side chat notice is shown instead of sending the update.
• Book limits are respected: entries are truncated to the per-page character cap and overflow will fall back to a new page until the book is full (the last page is overwritten when full).
• Detection relies on recognizable economy messages; servers that format payments differently or only expose balances through scoreboards may not trigger logging without a matching message.