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feat(enakgame): budget controller recommendations and analytics

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EnakGame phase 9 of docs/tasks-enakgame.md (EG-901 to EG-903).

Budget Controller (EG-901, EG-902)
- GET /marketing/enakgame/budgets/:id/recommendation, GLOBAL budgets only: the
  multiplier (budget − realized) / (forecast − realized), within one step of 1,
  rounded down to two decimals, either way. Shows each game's new rules.
- POST .../recommendation/accept with the multiplier the admin saw: recomputed in the
  transaction, then one new ACTIVE version per game, the old one RETIRED, audited
  with source budget_controller and RECOMMENDATION_ACCEPTED on the budget.
- Migration 000112: base_config_id, multiplier and budget_id on
  game_reward_configs. Rules are always scaled from the admin's last version, so
  rounding does not compound and min/max are against what the admin set.
- Guardrails in game_budgets.thresholds: max_step_percent 10, min/max multiplier
  50-150%, cooldown_days 7 per organization. Provisional pending RFC §19.2 #4.
- RewardCalculator.Scale for the four reward types: amounts only, rounded down.

Analytics (EG-903)
- GET /marketing/enakgame/analytics/games and /analytics/economy over a range of
  Asia/Jakarta days (at most 366), from game_sessions and the wallet ledger.
- Migrations 000113 (game_sessions by organization and start) and 000114
  (wallet_transactions by organization and time, CONCURRENTLY).

The Postgres tests for accepting and analytics were not run: no test database here.
Migrations 000112-000114 have not been run anywhere.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
efrilm
2026-10-07 21:18:31 +07:00
co-authored by Claude Opus 5.5
parent 798a36bd6c
commit 296708244e
28 changed files with 1647 additions and 25 deletions
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internal/router/router.go
+6
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@@ -672,6 +672,12 @@ func (r *Router) addAppRoutes(rg *gin.Engine) {
enakGame.POST("/budgets", r.authMiddleware.RequireLoyaltyManager(), r.enakGameAdminHandler.CreateBudget)
enakGame.PUT("/budgets/:id", r.authMiddleware.RequireLoyaltyManager(), r.enakGameAdminHandler.UpdateBudget)
enakGame.DELETE("/budgets/:id", r.authMiddleware.RequireLoyaltyManager(), r.enakGameAdminHandler.DeleteBudget)
// Accepting writes new reward configuration versions.
enakGame.GET("/budgets/:id/recommendation", r.enakGameAdminHandler.BudgetRecommendation)
enakGame.POST("/budgets/:id/recommendation/accept", r.authMiddleware.RequireLoyaltyManager(), r.enakGameAdminHandler.AcceptBudgetRecommendation)
enakGame.GET("/analytics/games", r.enakGameAdminHandler.GameAnalytics)
enakGame.GET("/analytics/economy", r.enakGameAdminHandler.EconomyAnalytics)
// Events change what rewards cost, like budgets.
enakGame.GET("/events", r.enakGameAdminHandler.ListEvents)