feat: market event

frontend/src/pages/MarketEvents.tsx

@@ -402,6 +402,7 @@ function EventDetail({
     pricesMode?: string
     lagMin?: number
     lagDays?: number
+    lagDebug?: { output_ids: string[]; edges_to_output: number; edges_with_lag_days: number; used_all_edges: boolean }
   } | null>(null)
   const [graphData, setGraphData]     = useState<GraphData | null>(null)
 
@@ -557,6 +558,7 @@ function EventDetail({
         pricesMode: d.prices_mode,
         lagMin:     d.effective_lag_min,
         lagDays:    d.effective_lag_days,
+        lagDebug:   d.lag_debug,
       })
       if (d.graph_json?.nodes?.length) setGraphData(d.graph_json)
       await loadAnalyses()
@@ -878,6 +880,7 @@ function EventDetail({
               const lagMin  = anResult.lagMin ?? 0
               const lagDays = anResult.lagDays ?? 0
               const driftEntries = Object.entries(anResult.drift ?? {})
+              const dbg = anResult.lagDebug
               return (
                 <div className="bg-slate-900/70 border border-slate-700/40 rounded px-3 py-2 space-y-1.5 text-[10px] font-mono">
                   <div className="flex items-center gap-2 flex-wrap">
@@ -895,6 +898,15 @@ function EventDetail({
                     {mode !== 'intraday_5m' && lagDays === 0 && (
                       <span className="text-slate-600 italic">lag J = 0 (jour J)</span>
                     )}
+                    {dbg && dbg.used_all_edges && (
+                      <span className="text-yellow-500/80 italic">⚠ fallback edges (output_ids vides)</span>
+                    )}
+                    {dbg && (
+                      <span className="text-slate-600">
+                        edges→out: <span className="text-slate-400">{dbg.edges_to_output}</span>
+                        {' '}| edges lag_j: <span className="text-slate-400">{dbg.edges_with_lag_days}</span>
+                      </span>
+                    )}
                   </div>
                   {driftEntries.map(([inst, d]) => (
                     <div key={inst} className="flex items-center gap-2 flex-wrap border-t border-slate-800/60 pt-1.5">