feat: implement achievement service #121
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Summary
This PR adds a new
achievement-serviceNestJS microservice responsible for defining, tracking, and unlocking player achievements, as well as awarding badges. The service runs independently with its own Postgres database and exposes APIs for querying achievement definitions, user progress, and unlock history.Key Changes
New Microservice:
microservices/achievement-serviceeconomy-service)quest_achievement)Dockerfileanddocker-compose.ymlDomain Entities
Achievement: definition (code, metric, targetValue, rarity, etc.)AchievementProgress: per-user progress (unique per user + achievement)Badge: awarded badge per unlocked achievement (idempotent)Core Services
AchievementService: manage achievement definitionsAchievementProgressService: record and fetch user progressAchievementUnlockService: evaluate unlocks and orchestrate side effectsBadgeService: award and query user badgesAchievementHistoryService: fetch user unlock historyAchievementNotificationService: unlock hook (currently logs)Core Logic
HTTP API
GET /achievements– list all achievement definitionsGET /users/:userId/achievements– get user progressGET /users/:userId/achievement-history– get unlock historycloses #103