PR for CHIA-4002 thanks roopd3v

[wjblanke]

DO NOT MERGE

Purpose:

Off by one for wallet race cache

Current Behavior:

Does not include fork point

New Behavior:

Includes fork point

Testing Notes:

---

Note

Medium Risk
Touches untrusted wallet sync/reorg edge cases and changes when cached coin states are (re)applied, which could affect transaction/notification handling if the new filtering is incorrect.

Overview
Fixes an off-by-one in untrusted wallet short-sync race-cache application by including the exact fork height when replaying cached CoinState updates.

Adds PeerRequestCache.coin_state_validation_recorded() and uses it to skip already-recorded validations (including reorg markers), and prunes successfully-applied entries from _race_cache to prevent coin states from being replayed after clear_after_height() drops validation markers.

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