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Each macro gauge selected in the Sentiment desk can now be independently configured with three alert criteria: - Seuil bas (≤): alert when value crosses below - Seuil haut (≥): alert when value crosses above - Variation % (Δ%): alert when N-day % change exceeds threshold Frontend: GaugeThresholdConfig component — one row per selected gauge, compact grid layout with enable toggle + 3 numeric inputs. Stored in config.gauge_thresholds[gauge_id]. Backend: _check_sentiment() extended — after CBOE signals, reads macro_gauge_snapshots history, checks each enabled gauge threshold, emits sentiment market_events with options_note for each breach. Gauge → affected_assets mapping covers all 32 gauge keys. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>