Prevent disconnected miners from bypassing invalid-share ban

[MoneroOcean]

Motivation

• The socket-close path began marking miners as removed which caused asynchronous share-validation callbacks to return before calling miner.checkBan, allowing remote miners to disconnect after submitting invalid shares and avoid temporary bans while still consuming verification/daemon resources.

Description

• Invoke miner.checkBan(shareAccepted) before the miner.removed_miner early-return in handleShareProcessed inside lib/pool/protocol.js so ban/accounting runs even for shares validated after a disconnect, while preserving throttled reply behavior and existing socket reply flow.

Testing

• Ran npm test --silent in this environment but the test run failed due to a missing dependency (protocol-buffers), so the full automated test suite could not be executed here.

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Codex Task