[Recording Oracle] feat: leaderboard enhancements for new UI

[dnechay]

Issue tracking

Closes #831

Context behind the change

• refactored reward pool calculation logic in order to enable reward estimation for leaderboard
• removed "reward" leaderboard since we aren't going to support it

How has this been tested?

• unit tests
• e2e locally: participant in campaign, make leaderboard request, make sure correct data returned for participant

Release plan

Regular

Potential risks; What to monitor; Rollback plan

Should be none

[Copilot]

Pull request overview

Updates Recording Oracle leaderboard and reward calculation plumbing to support the upcoming UI requirements (totals, “actual on” timestamp, and estimated rewards), while refactoring reward pool logic and removing the deprecated “rewards” leaderboard mode.

Changes:

• Refactors reward pool / reward estimation into new rewards.utils and updates progress recording to reserve funds based on the new calculation.
• Updates leaderboard endpoint to return { entries, total, actualOn } and per-entry score + estimatedReward, removing the old rank_by modes.
• Adjusts Reputation Oracle payouts to calculate competitive rewards per intermediate result and updates unit tests accordingly.

Reviewed changes

Copilot reviewed 19 out of 19 changed files in this pull request and generated 9 comments.

Show a summary per file

File	Description
reputation-oracle/src/modules/payouts/payouts.service.ts	Refactors reward batch calculation; competitive payouts now computed per intermediate result.
reputation-oracle/src/modules/payouts/payouts.service.spec.ts	Updates/extends unit tests for the new reward batch logic.
recording-oracle/src/modules/campaigns/types.ts	Removes LeaderboardRanking enum (deprecated ranking modes).
recording-oracle/src/modules/campaigns/rewards.utils.ts	Adds centralized reward pool calculation and reward estimation helpers.
recording-oracle/src/modules/campaigns/rewards.utils.spec.ts	Adds unit tests for the new rewards utilities.
recording-oracle/src/modules/campaigns/progress-checking/threshold.ts	Adds overflow safety-belt for aggregated totals.
recording-oracle/src/modules/campaigns/progress-checking/threshold.spec.ts	Adds test coverage for overflow guard.
recording-oracle/src/modules/campaigns/progress-checking/market-making.ts	Adds overflow safety-belt for aggregated totals.
recording-oracle/src/modules/campaigns/progress-checking/market-making.spec.ts	Adds test coverage for overflow guard.
recording-oracle/src/modules/campaigns/progress-checking/index.ts	Minor export ordering / re-export adjustments.
recording-oracle/src/modules/campaigns/progress-checking/holding.ts	Adds overflow safety-belt for aggregated totals.
recording-oracle/src/modules/campaigns/progress-checking/holding.spec.ts	Adds test coverage for overflow guard.
recording-oracle/src/modules/campaigns/fixtures/campaign.ts	Updates fixtures to support new reward/leaderboard semantics and competitive distributions.
recording-oracle/src/modules/campaigns/constants.ts	Renames progress-cycle constant to CAMPAIGNS_DAILY_CYCLE.
recording-oracle/src/modules/campaigns/campaigns.service.ts	Integrates new reward pool calc, adds prefinal results caching, and returns enhanced leaderboard response.
recording-oracle/src/modules/campaigns/campaigns.service.spec.ts	Updates tests for new reserved funds and leaderboard response shape.
recording-oracle/src/modules/campaigns/campaigns.repository.ts	Updates repository logic to use CAMPAIGNS_DAILY_CYCLE.
recording-oracle/src/modules/campaigns/campaigns.dto.ts	Updates leaderboard DTO to include score, estimated_reward, total, and actual_on.
recording-oracle/src/modules/campaigns/campaigns.controller.ts	Updates leaderboard endpoint to remove rank_by and return enhanced response.

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[Copilot]

Pull request overview

Copilot reviewed 19 out of 19 changed files in this pull request and generated 8 comments.

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Pull request overview

Copilot reviewed 24 out of 24 changed files in this pull request and generated 1 comment.

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