Storage Debug Instrumentation Purpose Enable rapid diagnosis of storage state, synchronization health, and backend performance bottlenecks by exposing: - Raw article inspection from both PostgreSQL and ChromaDB - Storage drift detection (missing/dangling entries) - Detailed startup timeline breakdown (DB init, cache preload, vector store, RSS refresh) - One-page debug dashboard consolidating all diagnostics Scope - Backend: , , , , - Frontend: , - No schema changes; purely additive instrumentation and debug routes Workflow 1. Create startup metrics service File: - Implement thread-safe class…