feat: build cache priming job#422
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Mosas2000 merged 2 commits intoStellaBridge:mainfrom Apr 29, 2026
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This PR implements a comprehensive cache priming system to eliminate "cold-start" latency for critical dashboard components.
Key Features:
Intelligent Priming: Categorizes tasks into High and Low priority to balance refresh frequency with external API rate limits.
Startup Warming: Automatically triggers high-priority priming (Protocol Stats, Major Prices) when the server starts.
Scheduled Refresh: Hourly and daily background jobs ensure cache entries stay fresh without waiting for user requests.
Robustness: Implements a partial-fill strategy where failed tasks are isolated and recorded without crashing the entire priming cycle.
Observability: New Prometheus metrics track priming success rates and execution duration.
Technical Changes:
New Service: CachePrimerService for orchestrating multi-priority priming.
New Job Processor: processCachePriming for BullMQ integration.
Updated MetricsService with priming-specific counters and histograms.
Refactored legacy cacheWarming.ts into a modern CLI tool utilizing the new service.
Closes #381