feat(ui): smart proximity label — infer street from deal data

Instead of showing "סביבה קרובה" for all street-polygon deals, we now
infer the searched street from the most common streetNameHeb among
deal_source="street" deals. Deals on that street get "אותו רחוב" (blue);
deals on other streets get "סביבה קרובה" (lighter blue). Works correctly
for both address searches and gush+plot searches.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

web/src/components/DealsTable.tsx

@@ -5,11 +5,34 @@ interface Props {
   deals: Deal[];
 }
 
-const SOURCE_LABELS: Record<string, string> = {
-  same_building: "אותו בניין",
-  street: "סביבה קרובה",
-  neighborhood: "שכונה",
-};
+function inferStreetName(deals: Deal[]): string | null {
+  const freq: Record<string, number> = {};
+  for (const d of deals) {
+    if (d.deal_source === "street" && d.streetNameHeb) {
+      freq[d.streetNameHeb] = (freq[d.streetNameHeb] ?? 0) + 1;
+    }
+  }
+  const entries = Object.entries(freq);
+  if (!entries.length) return null;
+  return entries.reduce((a, b) => (b[1] > a[1] ? b : a))[0];
+}
+
+function proximityLabel(deal: Deal, inferredStreet: string | null): string {
+  if (!deal.deal_source) return "—";
+  if (deal.deal_source === "same_building") return "אותו בניין";
+  if (deal.deal_source === "neighborhood") return "שכונה";
+  // "street" source — check if actually same street
+  if (inferredStreet && deal.streetNameHeb === inferredStreet) return "אותו רחוב";
+  return "סביבה קרובה";
+}
+
+function proximityClass(deal: Deal, inferredStreet: string | null): string {
+  if (deal.deal_source === "same_building") return "bg-emerald-100 text-emerald-800";
+  if (deal.deal_source === "street" && inferredStreet && deal.streetNameHeb === inferredStreet)
+    return "bg-blue-100 text-blue-800";
+  if (deal.deal_source === "street") return "bg-sky-50 text-sky-700";
+  return "bg-slate-100 text-slate-700";
+}
 
 export function DealsTable({ deals }: Props) {
   if (!deals.length) {
@@ -20,6 +43,8 @@ export function DealsTable({ deals }: Props) {
     );
   }
 
+  const inferredStreet = inferStreetName(deals);
+
   return (
     <div className="overflow-x-auto rounded-md border">
       <table dir="rtl" className="w-full text-sm">
@@ -67,14 +92,10 @@ export function DealsTable({ deals }: Props) {
                     <span
                       className={
                         "inline-block rounded-full px-2 py-0.5 text-xs " +
-                        (d.deal_source === "same_building"
-                          ? "bg-emerald-100 text-emerald-800"
-                          : d.deal_source === "street"
-                            ? "bg-blue-100 text-blue-800"
-                            : "bg-slate-100 text-slate-700")
+                        proximityClass(d, inferredStreet)
                       }
                     >
-                      {SOURCE_LABELS[d.deal_source] || d.deal_source}
+                      {proximityLabel(d, inferredStreet)}
                     </span>
                   ) : (
                     "—"