[Ecruise-hub]

Overview

This PR adds subscription tier management to the key contract, letting creators define access tiers with per-tier fees and expiry periods, and exposing an on-chain subscription check that external contracts can query. Subscription fees are credited to the creator earnings ledger, and renewals extend from the current expiry rather than from now.

Related Issue

Changes

📈 Subscription Tier Management

• [MODIFY] creator-keys/src/events.rs

  • Adds event emissions for tier creation and subscription activity so tier config and subscription state changes are observable on-chain.

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

  • Implements create_tier(key_id, tier_id, fee_per_period, period_seconds, label) to store tier configuration.
  • Implements subscribe(key_id, tier_id) to transfer the tier fee and record a subscription with an expiry timestamp.
  • Implements is_subscribed(key_id, wallet, tier_id) to return whether a wallet is within an active subscription window.
  • Renewal extends expiry from max(now, current_expiry) + period_seconds.
  • Credits subscription fees to the creator earnings ledger.

Verification Results

cargo test -p creator-keys
✅ tier creation, subscribe, is_subscribed, renewal, and earnings credit paths covered

Acceptance Criteria	Status
Tier creation stores correct fee and period configuration	✅ create_tier persists fee, period, and label
subscribe transfers correct fee and records accurate expiry	✅ Fee transferred and expiry set from period
is_subscribed returns true only within active subscription window	✅ Returns bool based on current expiry
Renewal extends expiry correctly from current expiry, not from now	✅ Extends from max(now, current_expiry)
Subscription fees credited accurately to creator earnings	✅ Fees credited to creator earnings ledger

Closes #1179

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[Chucks1093]

⚠️ Merge Conflict Detected

This PR currently has a merge conflict and cannot be merged until it is resolved.

Please rebase or merge the latest changes from the base branch into your branch and push again.

[Chucks1093]

⚠️ Merge Conflict Detected

This PR currently has a merge conflict and cannot be merged until it is resolved.

Please rebase or merge the latest changes from the base branch into your branch and push again.