- internal/advisor/handler.go: StreamChat (SSE, token-by-token),
GetConversations, GetConversation; body limited to 64KB, message
truncated to 8000 chars (T-06-02-03); API key never echoed (T-06-02-02)
- internal/api/router.go: /api/advisor/{chat,conversations,conversations/{id}}
with nil-guard returning 503 when DB not configured
- internal/config/config.go: Tier3 defaults + HWLAB_AI_TIER3_* env bindings
- cmd/hwlab/main.go: store init from HWLAB_DATABASE_URL, RunMigrations,
InventoryContextBuilder, AdvisorHandler wired into NewRouter
- internal/advisor/context.go: BuildContext assembles compact NetBox
summary (item count, category breakdown, recent 20 items)
- Caches result under sync.Mutex for defaultTTL=60s
- Stale cache returned on NetBox error rather than propagating failure
- internal/ai/types.go: add Tier3 TierConfig field to AIConfig
(required by AdvisorHandler for OpenRouter Claude Opus access)
