- db.go: added SaveMetric(MetricInput) and SaveHistory(HistoryInput) methods
that write directly to MySQL; non-fatal (log-only on error)
- handlers.go (OrchestratorStream): after each SSE stream finishes, an async
goroutine saves agentMetrics (agentId, requestId, tokens, processingTimeMs,
model, toolsCalled, status) and agentHistory (userMessage, agentResponse);
both error and success paths covered; orchAgentID resolved from DB
- routers.ts (agents.chat): saveMetric() called for both success and error paths
in the Node.js direct-chat fallback (was only saving agentHistory before)
- Verified: agentMetrics row ID=2 shows processingTimeMs=2133, totalTokens=143,
model=minimax-m2.7, Cyrillic text stored correctly as UTF-8
73bfa99c67