- Add AiServiceClient HTTP client for Python FastAPI AI service with timeout and fallback
- Add HttpAVMService that calls Python AVM endpoint, falls back to PrismaAVMService on failure
- Add ListingCreatedModerationHandler: auto-flags suspicious listings via AI moderation on create
- Add MarketIndexCronService: daily cron job aggregating market stats per district/city/type
- Wire ScheduleModule and new providers into AnalyticsModule and AppModule
- Add unit tests for AiServiceClient, HttpAVMService, and moderation handler (all passing)
Co-Authored-By: Paperclip <noreply@paperclip.ing>
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