fix(sf-03): CompetitorTable Status column + filter tabs

После backend PR #276 (site_status в /analyze) — frontend показывает
статус строящиеся/сданные с цветным badge и фильтр-tabs наверху таблицы.

TS type extended manually (backward compat) — codegen подхватит после
backend deploy.

Closes (epic part) #271 item 3

frontend/src/components/site-finder/CompetitorTable.tsx

@@ -1,7 +1,10 @@
 "use client";
 
+import { useState } from "react";
 import type { ParcelAnalysisCompetitor } from "@/types/site-finder";
 
+type StatusFilter = "all" | "building" | "ready";
+
 interface Props {
   competitors: ParcelAnalysisCompetitor[];
   districtName: string | null | undefined;
@@ -15,8 +18,94 @@ const CLASS_COLORS: Record<string, string> = {
   Премиум: "#b45309",
 };
 
+function StatusBadge({ status }: { status: string | null | undefined }) {
+  if (status === "Строящиеся") {
+    return (
+      <span
+        style={{
+          padding: "2px 6px",
+          borderRadius: 4,
+          fontSize: 11,
+          fontWeight: 600,
+          background: "#d1fae5",
+          color: "#065f46",
+          whiteSpace: "nowrap",
+        }}
+      >
+        Строящиеся
+      </span>
+    );
+  }
+  if (status === "Сданные") {
+    return (
+      <span
+        style={{
+          padding: "2px 6px",
+          borderRadius: 4,
+          fontSize: 11,
+          fontWeight: 500,
+          background: "#f1f5f9",
+          color: "#475569",
+          whiteSpace: "nowrap",
+        }}
+      >
+        Сданные
+      </span>
+    );
+  }
+  return (
+    <span
+      style={{
+        padding: "2px 6px",
+        borderRadius: 4,
+        fontSize: 11,
+        background: "#f4f4f5",
+        color: "#71717a",
+        whiteSpace: "nowrap",
+      }}
+    >
+      —
+    </span>
+  );
+}
+
 export function CompetitorTable({ competitors, districtName }: Props) {
-  const top20 = competitors.slice(0, 20);
+  const [filter, setFilter] = useState<StatusFilter>("all");
+
+  const buildingCount = competitors.filter(
+    (c) => c.site_status === "Строящиеся",
+  ).length;
+  const readyCount = competitors.filter(
+    (c) => c.site_status === "Сданные",
+  ).length;
+
+  const filtered = competitors.filter((c) => {
+    if (filter === "building") return c.site_status === "Строящиеся";
+    if (filter === "ready") return c.site_status === "Сданные";
+    return true;
+  });
+
+  const top20 = filtered.slice(0, 20);
+
+  const tabBase = {
+    padding: "4px 12px",
+    borderRadius: 6,
+    fontSize: 12,
+    fontWeight: 500,
+    cursor: "pointer",
+    border: "1px solid transparent",
+    background: "transparent",
+    color: "#6b7280",
+    transition: "all 0.15s",
+  } as const;
+
+  const tabActive = {
+    ...tabBase,
+    background: "#fff",
+    border: "1px solid #d1d5db",
+    color: "#111827",
+    fontWeight: 600,
+  } as const;
 
   return (
     <div
@@ -27,6 +116,7 @@ export function CompetitorTable({ competitors, districtName }: Props) {
         background: "#fff",
       }}
     >
+      {/* Header */}
       <div
         style={{
           padding: "14px 20px",
@@ -47,9 +137,42 @@ export function CompetitorTable({ competitors, districtName }: Props) {
         )}
       </div>
 
+      {/* Filter tabs */}
+      <div
+        style={{
+          padding: "8px 16px",
+          borderBottom: "1px solid #e5e7eb",
+          background: "#f9fafb",
+          display: "flex",
+          gap: 6,
+          alignItems: "center",
+        }}
+      >
+        <button
+          style={filter === "all" ? tabActive : tabBase}
+          onClick={() => setFilter("all")}
+        >
+          Все ({competitors.length})
+        </button>
+        <button
+          style={filter === "building" ? tabActive : tabBase}
+          onClick={() => setFilter("building")}
+        >
+          Строящиеся ({buildingCount})
+        </button>
+        <button
+          style={filter === "ready" ? tabActive : tabBase}
+          onClick={() => setFilter("ready")}
+        >
+          Сданные ({readyCount})
+        </button>
+      </div>
+
       {top20.length === 0 ? (
         <div style={{ padding: 24, color: "#9ca3af", fontSize: 13 }}>
-          Конкурентов не найдено
+          {filtered.length === 0 && competitors.length > 0
+            ? "Нет конкурентов по выбранному фильтру"
+            : "Конкурентов не найдено"}
         </div>
       ) : (
         <div style={{ overflowX: "auto" }}>
@@ -66,6 +189,7 @@ export function CompetitorTable({ competitors, districtName }: Props) {
                   "ЖК",
                   "Девелопер",
                   "Класс",
+                  "Статус",
                   "Квартир",
                   "Район",
                   "Расст., м",
@@ -145,6 +269,9 @@ export function CompetitorTable({ competitors, districtName }: Props) {
                         <span style={{ color: "#d1d5db" }}>—</span>
                       )}
                     </td>
+                    <td style={{ padding: "7px 12px" }}>
+                      <StatusBadge status={c.site_status} />
+                    </td>
                     <td
                       style={{
                         padding: "7px 12px",
@@ -176,7 +303,7 @@ export function CompetitorTable({ competitors, districtName }: Props) {
           </table>
         </div>
       )}
-      {competitors.length > 20 && (
+      {filtered.length > 20 && (
         <div
           style={{
             padding: "8px 20px",
@@ -186,7 +313,7 @@ export function CompetitorTable({ competitors, districtName }: Props) {
             color: "#9ca3af",
           }}
         >
-          Показано 20 из {competitors.length} ближайших ЖК
+          Показано 20 из {filtered.length} ближайших ЖК
         </div>
       )}
     </div>

frontend/src/types/site-finder.ts

@@ -39,6 +39,10 @@ export interface ParcelAnalysisCompetitor {
   flat_count: number | null;
   district_name: string | null;
   distance_m: number;
+  // Added manually — backend PR #276 (site_status in /analyze).
+  // Codegen will overwrite after backend deploy (additive, backward compat).
+  site_status?: string | null; // 'Строящиеся' | 'Сданные' | null
+  ready_dt?: string | null; // ISO date
 }
 
 export interface ParcelAnalysisDistrict {