feat(stock): GatePanel 자동 폼 + GlobalControls (TopN/ATR/RR + 3버튼)

src/pages/stock/screener/components/GatePanel.jsx

@@ -1,3 +1,41 @@
 export default function GatePanel({ meta, value, onChange }) {
-  return <section className="screener-card"><h3>{meta?.label ?? '게이트'}</h3><p style={{fontSize: 12, color:'#9ca3af'}}>TODO: 게이트 파라미터 폼 (Task 4.5)</p></section>;
+  if (!meta) return null;
+  const props = meta.param_schema?.properties || {};
+  return (
+    <section className="screener-card">
+      <h3>{meta.label}</h3>
+      <p style={{ fontSize: 11, color: '#9ca3af', marginTop: 0 }}>
+        통과 조건 — 통과한 종목만 점수 노드에 전달
+      </p>
+      {Object.entries(props).map(([key, prop]) => (
+        <GateField key={key} paramKey={key} prop={prop}
+                   value={value?.[key] ?? meta.default_params?.[key]}
+                   onChange={(v) => onChange({ ...value, [key]: v })} />
+      ))}
+    </section>
+  );
+}
+
+function GateField({ paramKey, prop, value, onChange }) {
+  if (prop.type === 'integer') {
+    return (
+      <div className="param-row">
+        <label style={{ width: 160, fontSize: 12 }}>{paramKey}</label>
+        <input type="number" value={value ?? ''}
+               min={prop.minimum} onChange={(e) => onChange(parseInt(e.target.value, 10))}
+               style={{ flex: 1 }} />
+      </div>
+    );
+  }
+  if (prop.type === 'boolean') {
+    return (
+      <div className="param-row">
+        <label>
+          <input type="checkbox" checked={!!value} onChange={(e) => onChange(e.target.checked)} />
+          <span style={{ marginLeft: 6, fontSize: 12 }}>{paramKey}</span>
+        </label>
+      </div>
+    );
+  }
+  return null;
 }

src/pages/stock/screener/components/GlobalControls.jsx

@@ -2,9 +2,42 @@ export default function GlobalControls({ settings, setSettings, onRun, onSave, o
   return (
     <section className="screener-card">
       <h3>실행 옵션</h3>
-      <button onClick={onRun} disabled={running}>{running ? '실행 중…' : '지금 실행 (미리보기)'}</button>
+      <div className="param-row">
-      <button onClick={onSave} disabled={running} style={{ marginTop: 8 }}>스냅샷 저장</button>
+        <label style={{ width: 80, fontSize: 12 }}>Top N</label>
-      <button onClick={onPersist} disabled={!dirty} style={{ marginTop: 8 }}>설정 저장</button>
+        <input type="number" value={settings.top_n}
+               onChange={(e) => setSettings({ ...settings, top_n: parseInt(e.target.value, 10) })}
+               min={5} max={100} style={{ width: 80 }} />
+      </div>
+      <div className="param-row">
+        <label style={{ width: 80, fontSize: 12 }}>ATR window</label>
+        <input type="number" value={settings.atr_window}
+               onChange={(e) => setSettings({ ...settings, atr_window: parseInt(e.target.value, 10) })}
+               min={5} max={50} style={{ width: 80 }} />
+      </div>
+      <div className="param-row">
+        <label style={{ width: 80, fontSize: 12 }}>손절 ×ATR</label>
+        <input type="number" value={settings.atr_stop_mult} step={0.1}
+               onChange={(e) => setSettings({ ...settings, atr_stop_mult: parseFloat(e.target.value) })}
+               min={0.5} max={5} style={{ width: 80 }} />
+      </div>
+      <div className="param-row">
+        <label style={{ width: 80, fontSize: 12 }}>R:R 비율</label>
+        <input type="number" value={settings.rr_ratio} step={0.1}
+               onChange={(e) => setSettings({ ...settings, rr_ratio: parseFloat(e.target.value) })}
+               min={1} max={10} style={{ width: 80 }} />
+      </div>
+      <button onClick={onRun} disabled={running}
+              style={{ marginTop: 16, width: '100%', padding: 10, background: '#fbbf24', color: '#0b0f17', border: 'none', borderRadius: 6, fontWeight: 600 }}>
+        {running ? '실행 중…' : '지금 실행 (미리보기)'}
+      </button>
+      <button onClick={onSave} disabled={running}
+              style={{ marginTop: 8, width: '100%', padding: 8 }}>
+        스냅샷 저장
+      </button>
+      <button onClick={onPersist} disabled={!dirty}
+              style={{ marginTop: 8, width: '100%', padding: 8, opacity: dirty ? 1 : 0.5 }}>
+        설정 저장 (디폴트 갱신)
+      </button>
     </section>
   );
 }