Implement P1 local matcher/ledger and P2 strategy engine.

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/src/pages/Settings.tsx

@@ -1,5 +1,11 @@
-import { FormEvent, useState } from "react";
-import { changeCredentials, getUsername, setSession } from "../api/client";
+import { FormEvent, useEffect, useState } from "react";
+import {
+  changeCredentials,
+  getUsername,
+  setSession,
+  apiFetch,
+  StrategySettings,
+} from "../api/client";
 
 export default function SettingsPage() {
   const [newUsername, setNewUsername] = useState(getUsername() || "admin");
@@ -10,7 +16,24 @@ export default function SettingsPage() {
   const [ok, setOk] = useState("");
   const [loading, setLoading] = useState(false);
 
-  async function onSave(e: FormEvent) {
+  const [fee, setFee] = useState(0.0005);
+  const [exitPts, setExitPts] = useState(30);
+  const [rest, setRest] = useState(300);
+  const [maxRounds, setMaxRounds] = useState(3);
+  const [stratOk, setStratOk] = useState("");
+
+  useEffect(() => {
+    apiFetch<StrategySettings>("/api/settings/strategy")
+      .then((s) => {
+        setFee(s.fee_rate);
+        setExitPts(s.exit_move_points);
+        setRest(s.rest_seconds);
+        setMaxRounds(s.max_rounds);
+      })
+      .catch(() => undefined);
+  }, []);
+
+  async function onSaveCreds(e: FormEvent) {
     e.preventDefault();
     setErr("");
     setOk("");
@@ -41,60 +64,134 @@ export default function SettingsPage() {
     }
   }
 
+  async function onSaveStrategy(e: FormEvent) {
+    e.preventDefault();
+    setStratOk("");
+    setErr("");
+    try {
+      await apiFetch("/api/settings/strategy", {
+        method: "PUT",
+        body: JSON.stringify({
+          fee_rate: fee,
+          exit_move_points: exitPts,
+          rest_seconds: rest,
+          max_rounds: maxRounds,
+        }),
+      });
+      setStratOk("策略参数已保存");
+    } catch (ex) {
+      setErr(ex instanceof Error ? ex.message : String(ex));
+    }
+  }
+
   return (
-    <div className="card" style={{ maxWidth: 560 }}>
-      <h2 style={{ marginTop: 0 }}>系统设置</h2>
-      <p style={{ color: "var(--muted)" }}>修改登录用户名与密码（写入服务器 .env，立即生效）。</p>
-      {err ? <div className="err">{err}</div> : null}
-      {ok ? <div style={{ color: "var(--up)", marginBottom: 12 }}>{ok}</div> : null}
-      <form onSubmit={onSave}>
-        <div className="field">
-          <label htmlFor="user">新用户名</label>
-          <input
-            id="user"
-            value={newUsername}
-            onChange={(e) => setNewUsername(e.target.value)}
-            autoComplete="username"
-            required
-          />
-        </div>
-        <div className="field">
-          <label htmlFor="cur">当前密码</label>
-          <input
-            id="cur"
-            type="password"
-            value={currentPassword}
-            onChange={(e) => setCurrentPassword(e.target.value)}
-            autoComplete="current-password"
-            required
-          />
-        </div>
-        <div className="field">
-          <label htmlFor="np">新密码</label>
-          <input
-            id="np"
-            type="password"
-            value={newPassword}
-            onChange={(e) => setNewPassword(e.target.value)}
-            autoComplete="new-password"
-            required
-          />
-        </div>
-        <div className="field">
-          <label htmlFor="cp">确认新密码</label>
-          <input
-            id="cp"
-            type="password"
-            value={confirmPassword}
-            onChange={(e) => setConfirmPassword(e.target.value)}
-            autoComplete="new-password"
-            required
-          />
-        </div>
-        <button className="btn" type="submit" disabled={loading}>
-          {loading ? "保存中…" : "保存"}
-        </button>
-      </form>
+    <div style={{ display: "grid", gap: 16, maxWidth: 560 }}>
+      <div className="card">
+        <h2 style={{ marginTop: 0 }}>策略设置</h2>
+        <p style={{ color: "var(--muted)" }}>
+          标的波动 N 点全平、轮次休息、费率（滑点=1×费率）。
+        </p>
+        {stratOk ? <div style={{ color: "var(--up)", marginBottom: 12 }}>{stratOk}</div> : null}
+        <form onSubmit={onSaveStrategy}>
+          <div className="field">
+            <label htmlFor="exit">EXIT_MOVE_POINTS（标的波动点数）</label>
+            <input
+              id="exit"
+              className="mono"
+              type="number"
+              step="1"
+              value={exitPts}
+              onChange={(e) => setExitPts(Number(e.target.value))}
+            />
+          </div>
+          <div className="field">
+            <label htmlFor="rest">REST_SECONDS（轮间休息秒）</label>
+            <input
+              id="rest"
+              className="mono"
+              type="number"
+              step="1"
+              value={rest}
+              onChange={(e) => setRest(Number(e.target.value))}
+            />
+          </div>
+          <div className="field">
+            <label htmlFor="rounds">MAX_ROUNDS</label>
+            <input
+              id="rounds"
+              className="mono"
+              type="number"
+              step="1"
+              value={maxRounds}
+              onChange={(e) => setMaxRounds(Number(e.target.value))}
+            />
+          </div>
+          <div className="field">
+            <label htmlFor="fee">FEE_RATE</label>
+            <input
+              id="fee"
+              className="mono"
+              type="number"
+              step="0.0001"
+              value={fee}
+              onChange={(e) => setFee(Number(e.target.value))}
+            />
+          </div>
+          <button className="btn" type="submit">
+            保存策略
+          </button>
+        </form>
+      </div>
+
+      <div className="card">
+        <h2 style={{ marginTop: 0 }}>登录账号</h2>
+        {err ? <div className="err">{err}</div> : null}
+        {ok ? <div style={{ color: "var(--up)", marginBottom: 12 }}>{ok}</div> : null}
+        <form onSubmit={onSaveCreds}>
+          <div className="field">
+            <label htmlFor="user">新用户名</label>
+            <input
+              id="user"
+              value={newUsername}
+              onChange={(e) => setNewUsername(e.target.value)}
+              required
+            />
+          </div>
+          <div className="field">
+            <label htmlFor="cur">当前密码</label>
+            <input
+              id="cur"
+              type="password"
+              value={currentPassword}
+              onChange={(e) => setCurrentPassword(e.target.value)}
+              required
+            />
+          </div>
+          <div className="field">
+            <label htmlFor="np">新密码</label>
+            <input
+              id="np"
+              type="password"
+              value={newPassword}
+              onChange={(e) => setNewPassword(e.target.value)}
+              required
+            />
+          </div>
+          <div className="field">
+            <label htmlFor="cp">确认新密码</label>
+            <input
+              id="cp"
+              type="password"
+              value={confirmPassword}
+              onChange={(e) => setConfirmPassword(e.target.value)}
+              required
+            />
+          </div>
+          <button className="btn" type="submit" disabled={loading}>
+            {loading ? "保存中…" : "保存账号"}
+          </button>
+        </form>
+      </div>
     </div>
   );
 }