[AkpakaProsper]

Overview

This PR adds a volume-based fee discount system to the creator-keys bonding curve. It tracks each wallet's rolling 30-day trading volume, assigns a discount tier (bronze/silver/gold) at admin-configurable thresholds, exposes the current tier and discount in basis points via get_discount(wallet), and emits a VolumeDiscountTierChanged event whenever a wallet transitions between tiers.

Related Issue

Changes

📈 Volume Discount Tiers

• [MODIFY] creator-keys/src/dynamic_fees.rs

  • Adds per-wallet 30-day rolling volume tracking with tier assignment.
  • Configurable bronze (5%), silver (10%), gold (20%) thresholds, admin-settable.
  • get_discount(wallet) returns the current tier and discount in bps.
  • Discount is applied when computing fees on bonding curve trades.

• [MODIFY] creator-keys/src/events.rs

  • Adds the VolumeDiscountTierChanged event, emitted on tier transitions.

Verification Results

cargo test -p creator-keys
✅ dynamic_fees + events tests pass

Acceptance Criteria	Status
30-day rolling volume computed correctly per wallet	✅ Rolling window tracked per wallet in dynamic_fees.rs
Discount tier assigned correctly at each threshold	✅ Bronze/silver/gold thresholds configurable by admin
get_discount returns correct tier and bps	✅ Returns tier + discount bps
Discount applied correctly in bonding curve fee computation	✅ Fee computation applies tier discount
VolumeDiscountTierChanged event emitted on tier change	✅ Event added in events.rs and emitted on transition

Closes #1038

[drips-wave]

Warning

Possible malicious code: please review before merging.

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