feat: vue flux — arcs dirigés entre villes géolocalisées

- Nouveau type TransactionArc + buildCorridors + computeFlowStats
- FlowMap : SVG overlay Leaflet, arcs bezier, flèches de direction, nœuds de villes cliquables
- Clic sur une ville : arcs sortants orange, entrants teal, reste grisé
- DataService : résolution géo des destinataires (toId) dans le même appel Cesium+
- useAnimation : expose visibleArcs filtré par frame
- PeriodSelector : bouton toggle Heatmap / Flux
- StatsPanel : stats flux (volume, top émetteurs, top récepteurs, balance nette)
- App : state viewMode + focusCity, FlowMap conditionnel

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/components/StatsPanel.tsx

@@ -1,5 +1,6 @@
 import { useRef } from 'react';
 import type { PeriodStats } from '../services/DataService';
+import type { FlowStats } from '../data/arcData';
 
 interface StatsPanelProps {
   stats: PeriodStats | null;
@@ -8,6 +9,9 @@ interface StatsPanelProps {
   source: 'live' | 'mock';
   currentUD: number;
   animationLabel?: string;
+  viewMode?: 'heatmap' | 'flow';
+  flowStats?: FlowStats | null;
+  focusCity?: string | null;
 }
 
 const MEDALS = ['🥇', '🥈', '🥉'];
@@ -33,7 +37,28 @@ function formatDU(g1: number, ud: number): string {
   return `≈ ${Math.round(du).toLocaleString('fr-FR')} DU`;
 }
 
-export function StatsPanel({ stats, loading, periodDays, source, currentUD, animationLabel }: StatsPanelProps) {
+function CityRow({ city, volume, count, countryCode, accent }: {
+  city: string; volume: number; count: number; countryCode: string; accent?: string;
+}) {
+  return (
+    <div className="flex items-center justify-between">
+      <span className="flex items-center gap-1.5 text-white text-xs font-medium truncate">
+        {countryCode && (
+          <span className="text-[10px] font-bold bg-[#1e1f2a] text-[#6b7280] rounded px-1 py-0.5 leading-none shrink-0">
+            {countryCode}
+          </span>
+        )}
+        <span className="truncate">{city}</span>
+      </span>
+      <span className={`text-xs font-mono shrink-0 ml-1 ${accent ?? 'text-[#d4a843]'}`}>
+        {volume.toLocaleString('fr-FR', { maximumFractionDigits: 0 })} Ğ1
+        <span className="text-[#4b5563] ml-0.5">· {count}</span>
+      </span>
+    </div>
+  );
+}
+
+export function StatsPanel({ stats, loading, periodDays, source, currentUD, animationLabel, viewMode = 'heatmap', flowStats, focusCity }: StatsPanelProps) {
   const periodLabel = periodDays === 1 ? '24 dernières heures' : `${periodDays} derniers jours`;
   const prevStats = useRef<PeriodStats | null>(null);
 
@@ -85,84 +110,171 @@ export function StatsPanel({ stats, loading, periodDays, source, currentUD, anim
         }
       </p>
 
-      {/* Stats */}
-      {loading ? (
-        <div className="space-y-3">
-          {[1, 2].map((i) => (
-            <div key={i} className="bg-[#0f1016] border border-[#2e2f3a] rounded-xl p-4 h-20 animate-pulse" />
-          ))}
-        </div>
-      ) : stats ? (
-        <div className="space-y-3">
-          <StatCard
-            label="Volume total"
-            value={`${stats.totalVolume.toLocaleString('fr-FR', { maximumFractionDigits: 2 })} Ğ1`}
-            sub={formatDU(stats.totalVolume, currentUD)}
-            delta={prevVolume !== null ? (stats.totalVolume > prevVolume ? 'up' : stats.totalVolume < prevVolume ? 'down' : null) : null}
-          />
-          <StatCard
-            label="Transactions"
-            value={stats.transactionCount.toLocaleString('fr-FR')}
-            sub={(() => {
-              const avg = stats.totalVolume / (stats.transactionCount || 1);
-              return `≈ ${avg.toFixed(2)} Ğ1 / tx  ·  ${formatDU(avg, currentUD)} / tx`;
-            })()}
-            delta={prevTxCount !== null ? (stats.transactionCount > prevTxCount ? 'up' : stats.transactionCount < prevTxCount ? 'down' : null) : null}
-          />
-          {/* Couverture géo — transactionCount inclut le total réel de la frame */}
-          {source === 'live' && stats.transactionCount > 0 && (() => {
-            const pct = Math.round((stats.geoCount / stats.transactionCount) * 100);
-            return (
-              <div className="bg-[#0f1016] border border-[#2e2f3a] rounded-xl p-3">
-                <div className="flex justify-between items-center mb-1.5">
-                  <p className="text-[#4b5563] text-xs uppercase tracking-widest">Géolocalisées</p>
-                  <p className="text-[#6b7280] text-xs">{stats.geoCount} / {stats.transactionCount}</p>
-                </div>
-                <div className="w-full bg-[#1e1f2a] rounded-full h-1.5">
-                  <div
-                    className="bg-[#d4a843] h-1.5 rounded-full transition-all duration-500"
-                    style={{ width: `${pct}%` }}
-                  />
-                </div>
-                <p className="text-[#4b5563] text-xs mt-1 text-right">{pct}% via Cesium+</p>
-              </div>
-            );
-          })()}
-        </div>
-      ) : null}
-
-      {/* Top cities */}
-      {!loading && stats && stats.topCities.length > 0 && (
-        <div className="space-y-2">
-          <p className="text-[#4b5563] text-xs uppercase tracking-widest border-t border-[#1e1f2a] pt-3">
-            Top villes
-          </p>
-          {stats.topCities.map((city, i) => (
-            <div
-              key={city.name}
-              className="bg-[#0f1016] border border-[#2e2f3a] rounded-lg px-3 py-2.5 flex gap-2.5"
-            >
-              <span className="text-base shrink-0 mt-0.5">{MEDALS[i]}</span>
-              <div className="flex-1 min-w-0">
-                <p className="text-white text-xs font-medium leading-snug">{city.name}</p>
-                <div className="flex items-center justify-between mt-1">
-                  <span className="flex items-center gap-1.5 text-[#6b7280] text-xs">
-                    {city.countryCode && (
-                      <span className="text-[10px] font-bold bg-[#1e1f2a] text-[#6b7280] rounded px-1 py-0.5 leading-none">
-                        {city.countryCode}
-                      </span>
-                    )}
-                    {city.count} tx
-                  </span>
-                  <span className="text-[#d4a843] text-xs font-mono flex items-center gap-1">
-                    {city.volume.toLocaleString('fr-FR', { maximumFractionDigits: 0 })} Ğ1
-                    {delta(city.volume, prevCityVolume, city.name)}
-                  </span>
-                </div>
-              </div>
+      {/* ---- Vue HEATMAP ---- */}
+      {viewMode === 'heatmap' && (
+        <>
+          {loading ? (
+            <div className="space-y-3">
+              {[1, 2].map((i) => (
+                <div key={i} className="bg-[#0f1016] border border-[#2e2f3a] rounded-xl p-4 h-20 animate-pulse" />
+              ))}
             </div>
-          ))}
-        </div>
+          ) : stats ? (
+            <div className="space-y-3">
+              <StatCard
+                label="Volume total"
+                value={`${stats.totalVolume.toLocaleString('fr-FR', { maximumFractionDigits: 2 })} Ğ1`}
+                sub={formatDU(stats.totalVolume, currentUD)}
+                delta={prevVolume !== null ? (stats.totalVolume > prevVolume ? 'up' : stats.totalVolume < prevVolume ? 'down' : null) : null}
+              />
+              <StatCard
+                label="Transactions"
+                value={stats.transactionCount.toLocaleString('fr-FR')}
+                sub={(() => {
+                  const avg = stats.totalVolume / (stats.transactionCount || 1);
+                  return `≈ ${avg.toFixed(2)} Ğ1 / tx  ·  ${formatDU(avg, currentUD)} / tx`;
+                })()}
+                delta={prevTxCount !== null ? (stats.transactionCount > prevTxCount ? 'up' : stats.transactionCount < prevTxCount ? 'down' : null) : null}
+              />
+              {/* Couverture géo — transactionCount inclut le total réel de la frame */}
+              {source === 'live' && stats.transactionCount > 0 && (() => {
+                const pct = Math.round((stats.geoCount / stats.transactionCount) * 100);
+                return (
+                  <div className="bg-[#0f1016] border border-[#2e2f3a] rounded-xl p-3">
+                    <div className="flex justify-between items-center mb-1.5">
+                      <p className="text-[#4b5563] text-xs uppercase tracking-widest">Géolocalisées</p>
+                      <p className="text-[#6b7280] text-xs">{stats.geoCount} / {stats.transactionCount}</p>
+                    </div>
+                    <div className="w-full bg-[#1e1f2a] rounded-full h-1.5">
+                      <div
+                        className="bg-[#d4a843] h-1.5 rounded-full transition-all duration-500"
+                        style={{ width: `${pct}%` }}
+                      />
+                    </div>
+                    <p className="text-[#4b5563] text-xs mt-1 text-right">{pct}% via Cesium+</p>
+                  </div>
+                );
+              })()}
+            </div>
+          ) : null}
+
+          {/* Top cities */}
+          {!loading && stats && stats.topCities.length > 0 && (
+            <div className="space-y-2">
+              <p className="text-[#4b5563] text-xs uppercase tracking-widest border-t border-[#1e1f2a] pt-3">
+                Top villes
+              </p>
+              {stats.topCities.map((city, i) => (
+                <div
+                  key={city.name}
+                  className="bg-[#0f1016] border border-[#2e2f3a] rounded-lg px-3 py-2.5 flex gap-2.5"
+                >
+                  <span className="text-base shrink-0 mt-0.5">{MEDALS[i]}</span>
+                  <div className="flex-1 min-w-0">
+                    <p className="text-white text-xs font-medium leading-snug">{city.name}</p>
+                    <div className="flex items-center justify-between mt-1">
+                      <span className="flex items-center gap-1.5 text-[#6b7280] text-xs">
+                        {city.countryCode && (
+                          <span className="text-[10px] font-bold bg-[#1e1f2a] text-[#6b7280] rounded px-1 py-0.5 leading-none">
+                            {city.countryCode}
+                          </span>
+                        )}
+                        {city.count} tx
+                      </span>
+                      <span className="text-[#d4a843] text-xs font-mono flex items-center gap-1">
+                        {city.volume.toLocaleString('fr-FR', { maximumFractionDigits: 0 })} Ğ1
+                        {delta(city.volume, prevCityVolume, city.name)}
+                      </span>
+                    </div>
+                  </div>
+                </div>
+              ))}
+            </div>
+          )}
+        </>
+      )}
+
+      {/* ---- Vue FLUX ---- */}
+      {viewMode === 'flow' && (
+        <>
+          {loading ? (
+            <div className="space-y-3">
+              {[1, 2, 3].map((i) => (
+                <div key={i} className="bg-[#0f1016] border border-[#2e2f3a] rounded-xl p-4 h-16 animate-pulse" />
+              ))}
+            </div>
+          ) : flowStats ? (
+            <div className="space-y-3">
+              <StatCard
+                label="Volume des flux"
+                value={`${flowStats.totalVolume.toLocaleString('fr-FR', { maximumFractionDigits: 2 })} Ğ1`}
+                sub={formatDU(flowStats.totalVolume, currentUD)}
+              />
+              <StatCard
+                label="Arcs géolocalisés"
+                value={flowStats.arcCount.toLocaleString('fr-FR')}
+                sub={flowStats.arcCount > 0
+                  ? `≈ ${(flowStats.totalVolume / flowStats.arcCount).toFixed(2)} Ğ1 / arc`
+                  : undefined}
+              />
+
+              {/* Top émetteurs */}
+              {flowStats.topEmitters.length > 0 && (
+                <div className="bg-[#0f1016] border border-[#2e2f3a] rounded-xl p-3 space-y-2">
+                  <p className="text-[#4b5563] text-xs uppercase tracking-widest">Top émetteurs</p>
+                  {flowStats.topEmitters.map((c, i) => (
+                    <div key={c.city} className="flex items-center gap-2">
+                      <span className="text-sm shrink-0">{MEDALS[i]}</span>
+                      <CityRow city={c.city} volume={c.volume} count={c.count} countryCode={c.countryCode} accent="text-[#ff8f00]" />
+                    </div>
+                  ))}
+                </div>
+              )}
+
+              {/* Top récepteurs */}
+              {flowStats.topReceivers.length > 0 && (
+                <div className="bg-[#0f1016] border border-[#2e2f3a] rounded-xl p-3 space-y-2">
+                  <p className="text-[#4b5563] text-xs uppercase tracking-widest">Top récepteurs</p>
+                  {flowStats.topReceivers.map((c, i) => (
+                    <div key={c.city} className="flex items-center gap-2">
+                      <span className="text-sm shrink-0">{MEDALS[i]}</span>
+                      <CityRow city={c.city} volume={c.volume} count={c.count} countryCode={c.countryCode} accent="text-[#00acc1]" />
+                    </div>
+                  ))}
+                </div>
+              )}
+
+              {/* Balance nette */}
+              {flowStats.netBalance.length > 0 && (
+                <div className="bg-[#0f1016] border border-[#2e2f3a] rounded-xl p-3 space-y-1.5">
+                  <p className="text-[#4b5563] text-xs uppercase tracking-widest">Balance nette</p>
+                  {flowStats.netBalance.map((c) => (
+                    <div key={c.city} className="flex items-center justify-between">
+                      <span className="text-white text-xs truncate">{c.city}</span>
+                      <span className={`text-xs font-mono shrink-0 ml-2 ${c.net >= 0 ? 'text-[#00acc1]' : 'text-[#ff8f00]'}`}>
+                        {c.net >= 0 ? '+' : ''}{Math.round(c.net).toLocaleString('fr-FR')} Ğ1
+                      </span>
+                    </div>
+                  ))}
+                </div>
+              )}
+
+              {/* Ville focus */}
+              {focusCity && (
+                <div className="bg-[#0f1016] border border-[#d4a843]/30 rounded-xl p-3">
+                  <p className="text-[#4b5563] text-xs uppercase tracking-widest mb-1">Ville sélectionnée</p>
+                  <p className="text-[#d4a843] text-sm font-medium">{focusCity}</p>
+                  <p className="text-[#4b5563] text-xs mt-0.5">
+                    <span className="text-[#ff8f00]">■</span> sortants &nbsp;
+                    <span className="text-[#00acc1]">■</span> entrants
+                  </p>
+                </div>
+              )}
+            </div>
+          ) : (
+            <p className="text-[#4b5563] text-xs">Aucun arc à afficher.</p>
+          )}
+        </>
       )}
 
       {/* Footer */}