feat(mse): wallet page + insufficient balance skip in strategy

- BinanceClient::get_usdt_spot_balance() helper
- strategy.rs: check USDT balance before market_buy; skip (Ok(None)) if insufficient
- GET /api/wallet/spot endpoint returning all non-zero spot balances
- /wallet page: Spot tab with sortable balance table (USDT pinned top)
- Earn/Futures tabs as placeholders for future implementation
- Header nav: Cüzdanlar link added

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

src/api/mod.rs

@@ -4,3 +4,4 @@ pub mod events;
 pub mod mode;
 pub mod positions;
 pub mod routes;
+pub mod wallet;

src/api/routes.rs

@@ -7,7 +7,7 @@ use axum::{
 };
 use axum_extra::extract::CookieJar;
 
-use crate::api::{auth, bots, events, mode, positions};
+use crate::api::{auth, bots, events, mode, positions, wallet};
 use crate::AppState;
 
 pub fn build(state: AppState) -> Router {
@@ -23,6 +23,7 @@ pub fn build(state: AppState) -> Router {
         .route("/bots/:id/log-stream", get(events::bot_log_sse))
         .route("/bots/:id/positions/:order_id/cancel", post(bots::cancel_position))
         .route("/bots/:id/positions/:order_id/sell", post(bots::sell_position))
+        .route("/wallet/spot", get(wallet::spot_balances))
         .route("/positions", get(positions::open_positions))
         .route("/positions/closed", get(positions::closed_positions))
         .route("/mode", get(mode::get_mode).post(mode::set_mode))
@@ -41,6 +42,7 @@ pub fn build(state: AppState) -> Router {
         .route("/bots", get(bots_handler))
         .route("/bots/:id", get(bot_detail_handler))
         .route("/positions", get(positions_handler))
+        .route("/wallet", get(wallet_handler))
         .with_state(state)
 }
 
@@ -105,6 +107,19 @@ async fn bot_detail_handler(
     }
 }
 
+async fn wallet_handler(
+    State(state): State<AppState>,
+    jar: CookieJar,
+) -> impl IntoResponse {
+    let token = jar.get("mse_session").map(|c| c.value().to_string());
+    let authed = match token {
+        Some(t) => { let db = state.db.lock().await; db.session_exists(&t).unwrap_or(false) }
+        None => false,
+    };
+    if authed { axum::response::Html(crate::tmpl::render("wallet.html", "wallet")).into_response() }
+    else { Redirect::to("/").into_response() }
+}
+
 async fn dashboard_handler(
     State(state): State<AppState>,
     jar: CookieJar,

src/api/wallet.rs

@@ -0,0 +1,33 @@
+use axum::{extract::State, response::IntoResponse, Json};
+use serde::Serialize;
+
+use crate::binance::client::BinanceClient;
+use crate::AppState;
+
+#[derive(Serialize)]
+pub struct BalanceEntry {
+    pub asset: String,
+    pub free: f64,
+    pub locked: f64,
+}
+
+pub async fn spot_balances(State(state): State<AppState>) -> impl IntoResponse {
+    let mode = state.current_mode.lock().await.clone();
+    let (api_key, api_secret) = if mode == "live" {
+        (state.live_api_key.clone(), state.live_api_secret.clone())
+    } else {
+        (state.testnet_api_key.clone(), state.testnet_api_secret.clone())
+    };
+    let client = BinanceClient::new(api_key, api_secret, mode == "testnet");
+
+    match client.get_account_balances().await {
+        Ok(balances) => {
+            let entries: Vec<BalanceEntry> = balances
+                .into_iter()
+                .map(|(asset, free, locked)| BalanceEntry { asset, free, locked })
+                .collect();
+            Json(entries).into_response()
+        }
+        Err(e) => (axum::http::StatusCode::BAD_GATEWAY, e.to_string()).into_response(),
+    }
+}

src/binance/client.rs

@@ -309,6 +309,14 @@ impl BinanceClient {
         Ok(symbols)
     }
 
+    pub async fn get_usdt_spot_balance(&self) -> Result<f64> {
+        let balances = self.get_account_balances().await?;
+        Ok(balances.iter()
+            .find(|(asset, _, _)| asset == "USDT")
+            .map(|(_, free, _)| *free)
+            .unwrap_or(0.0))
+    }
+
     /// Binance hesabındaki sıfır olmayan tüm bakiyeleri döner: Vec<(asset, free, locked)>
     pub async fn get_account_balances(&self) -> Result<Vec<(String, f64, f64)>> {
         let timestamp = chrono::Utc::now().timestamp_millis().to_string();

src/bot/strategy.rs

@@ -28,6 +28,15 @@ impl RedCandleStrategy {
             symbol, kline.open, kline.close
         );
 
+        let usdt_balance = client.get_usdt_spot_balance().await?;
+        if usdt_balance < usdt_amount {
+            info!(
+                "[{}] Yetersiz USDT bakiyesi ({:.2} < {:.2}), bekleniyor",
+                symbol, usdt_balance, usdt_amount
+            );
+            return Ok(None);
+        }
+
         let filters = client.get_symbol_filters(symbol).await?;
         let raw_qty = usdt_amount / kline.close;
         let quantity = filters.format_qty(raw_qty);

src/tmpl.rs

@@ -12,6 +12,7 @@ fn env() -> &'static Environment<'static> {
         e.add_template_owned("bots.html",      include_str!("web/bots.html").to_string()).unwrap();
         e.add_template_owned("bot.html",       include_str!("web/bot.html").to_string()).unwrap();
         e.add_template_owned("positions.html", include_str!("web/positions.html").to_string()).unwrap();
+        e.add_template_owned("wallet.html",    include_str!("web/wallet.html").to_string()).unwrap();
         e
     })
 }

src/web/_header.html

@@ -5,6 +5,7 @@
     <a href="/dashboard" class="nav-link{% if active_page == 'dashboard' %} active{% endif %}">Dashboard</a>
     <a href="/bots" class="nav-link{% if active_page == 'bots' %} active{% endif %}">Botlar</a>
     <a href="/positions" class="nav-link{% if active_page == 'positions' %} active{% endif %}">Pozisyonlar</a>
+    <a href="/wallet" class="nav-link{% if active_page == 'wallet' %} active{% endif %}">Cüzdanlar</a>
   </nav>
   <div class="spacer"></div>
   <div class="mode-toggle">

src/web/wallet.html

@@ -0,0 +1,178 @@
+<!DOCTYPE html>
+<html lang="tr">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>Cüzdanlar — CryptoFox Mukan Edition</title>
+  <style>
+    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
+    :root {
+      --bg: #0f0f13; --surface: #1a1a22; --border: #2a2a38;
+      --text: #e0e0f0; --muted: #666; --accent: #6c63ff;
+      --green: #2ecc71; --red: #e74c3c; --yellow: #f39c12;
+    }
+    body { background: var(--bg); color: var(--text); font-family: 'Segoe UI', system-ui, sans-serif; font-size: 14px; min-height: 100vh; }
+    header { background: var(--surface); border-bottom: 1px solid var(--border); padding: 0 24px; height: 52px; display: flex; align-items: center; gap: 16px; }
+    .logo { font-size: 16px; font-weight: 700; }
+    .logo-crypto { color: #d0d0d0; } .logo-fox { color: #00d4ff; }
+    .h-sep { width: 1px; height: 20px; background: var(--border); }
+    nav { display: flex; gap: 4px; }
+    .nav-link { padding: 5px 12px; border-radius: 5px; font-size: 13px; color: var(--muted); text-decoration: none; transition: all .15s; }
+    .nav-link:hover { color: var(--text); background: rgba(255,255,255,.05); }
+    .nav-link.active { color: var(--text); background: rgba(108,99,255,.15); }
+    .spacer { flex: 1; }
+    .btn { padding: 5px 12px; border-radius: 5px; border: 1px solid var(--border); background: transparent; color: var(--text); font-size: 12px; cursor: pointer; transition: all .15s; }
+    .btn:hover { background: rgba(255,255,255,.05); }
+    .btn-logout { border-color: var(--red); color: var(--red); font-size: 12px; }
+    .btn-logout:hover { background: rgba(231,76,60,.1); }
+    .mode-toggle { display: flex; align-items: center; gap: 4px; background: var(--bg); border: 1px solid var(--border); border-radius: 6px; padding: 3px; }
+    .mode-btn { padding: 3px 12px; border-radius: 4px; border: none; background: transparent; color: var(--muted); font-size: 11px; font-weight: 600; cursor: pointer; transition: all .15s; }
+    .mode-btn.active-live { background: rgba(46,204,113,.15); color: var(--green); }
+    .mode-btn.active-testnet { background: rgba(243,156,18,.15); color: var(--yellow); }
+
+    main { padding: 24px; max-width: 900px; margin: 0 auto; display: flex; flex-direction: column; gap: 24px; }
+    .page-toolbar { display: flex; align-items: center; justify-content: space-between; }
+    .page-title { font-size: 16px; font-weight: 600; }
+    .tab-bar { display: flex; gap: 4px; }
+    .tab { padding: 5px 14px; border-radius: 5px; border: 1px solid var(--border); background: transparent; color: var(--muted); font-size: 12px; cursor: pointer; transition: all .15s; }
+    .tab.active { background: rgba(108,99,255,.15); border-color: var(--accent); color: var(--text); }
+    .tab:hover:not(.active) { background: rgba(255,255,255,.04); color: var(--text); }
+
+    section { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
+    .section-header { padding: 14px 18px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
+    .section-title { font-weight: 600; font-size: 13px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); }
+    .total-badge { font-size: 12px; color: var(--text); background: rgba(255,255,255,.06); padding: 2px 10px; border-radius: 10px; }
+
+    table { width: 100%; border-collapse: collapse; }
+    th, td { padding: 10px 18px; text-align: left; border-bottom: 1px solid var(--border); }
+    th { font-size: 11px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); font-weight: 500; }
+    tr:last-child td { border-bottom: none; }
+    tr:hover td { background: rgba(255,255,255,.02); }
+    .asset-name { font-weight: 600; font-size: 13px; }
+    .asset-full { font-size: 11px; color: var(--muted); margin-top: 1px; }
+    .val-free { color: var(--text); }
+    .val-locked { color: var(--yellow); }
+    .val-usdt { font-size: 11px; color: var(--muted); margin-top: 1px; }
+    .empty { padding: 32px 18px; color: var(--muted); font-size: 13px; text-align: center; }
+    .loading { padding: 32px 18px; color: var(--muted); font-size: 13px; text-align: center; }
+    .usdt-row td { background: rgba(46,204,113,.04); }
+    .usdt-row .asset-name { color: var(--green); }
+
+    .coming-soon { padding: 48px 18px; text-align: center; color: var(--muted); }
+    .coming-soon .icon { font-size: 32px; margin-bottom: 12px; }
+    .coming-soon p { font-size: 13px; }
+  </style>
+</head>
+<body>
+
+{% include "_header.html" %}
+
+<main>
+  <div class="page-toolbar">
+    <span class="page-title">Cüzdanlar</span>
+    <div class="tab-bar">
+      <button class="tab active" onclick="showTab('spot')">Spot</button>
+      <button class="tab" onclick="showTab('earn')">Earn</button>
+      <button class="tab" onclick="showTab('futures')">Futures</button>
+    </div>
+  </div>
+
+  <div id="tab-spot">
+    <section>
+      <div class="section-header">
+        <span class="section-title">Spot Cüzdan</span>
+        <span class="total-badge" id="usdt-total">—</span>
+      </div>
+      <table>
+        <thead><tr><th>Varlık</th><th>Kullanılabilir</th><th>Kilitli</th></tr></thead>
+        <tbody id="spot-body"><tr><td colspan="3" class="loading">Yükleniyor...</td></tr></tbody>
+      </table>
+    </section>
+  </div>
+
+  <div id="tab-earn" style="display:none">
+    <section>
+      <div class="section-header"><span class="section-title">Earn Cüzdan</span></div>
+      <div class="coming-soon">
+        <div class="icon">🔒</div>
+        <p>Earn cüzdanı desteği yakında eklenecek.</p>
+      </div>
+    </section>
+  </div>
+
+  <div id="tab-futures" style="display:none">
+    <section>
+      <div class="section-header"><span class="section-title">Futures Cüzdan</span></div>
+      <div class="coming-soon">
+        <div class="icon">📈</div>
+        <p>Futures cüzdanı desteği yakında eklenecek.</p>
+      </div>
+    </section>
+  </div>
+</main>
+
+<script>
+function onModeChange() { loadSpot(); }
+
+async function api(path) {
+  const res = await fetch('/api' + path, { credentials: 'include' });
+  if (res.status === 401) { window.location.href = '/'; throw new Error('Unauthorized'); }
+  return res;
+}
+function fmt(n, d=4) { return parseFloat(n).toLocaleString('tr-TR', { minimumFractionDigits: 0, maximumFractionDigits: d }); }
+
+function showTab(name) {
+  ['spot','earn','futures'].forEach(t => {
+    document.getElementById('tab-' + t).style.display = t === name ? '' : 'none';
+    document.querySelectorAll('.tab')[['spot','earn','futures'].indexOf(t)].className = 'tab' + (t === name ? ' active' : '');
+  });
+}
+
+async function loadSpot() {
+  const tbody = document.getElementById('spot-body');
+  tbody.innerHTML = '<tr><td colspan="3" class="loading">Yükleniyor...</td></tr>';
+  document.getElementById('usdt-total').textContent = '—';
+
+  const res = await api('/wallet/spot');
+  if (!res.ok) {
+    tbody.innerHTML = `<tr><td colspan="3" class="empty">Bakiye alınamadı: ${await res.text()}</td></tr>`;
+    return;
+  }
+  const balances = await res.json();
+  if (!balances.length) {
+    tbody.innerHTML = '<tr><td colspan="3" class="empty">Bakiye yok</td></tr>';
+    return;
+  }
+
+  // USDT'yi en üste al, sonra free'ye göre sırala
+  balances.sort((a, b) => {
+    if (a.asset === 'USDT') return -1;
+    if (b.asset === 'USDT') return 1;
+    return (b.free + b.locked) - (a.free + a.locked);
+  });
+
+  const usdt = balances.find(b => b.asset === 'USDT');
+  if (usdt) {
+    document.getElementById('usdt-total').textContent =
+      `${fmt(usdt.free, 2)} serbest  /  ${fmt(usdt.free + usdt.locked, 2)} USDT toplam`;
+  }
+
+  tbody.innerHTML = balances.map(b => {
+    const isUsdt = b.asset === 'USDT';
+    return `<tr class="${isUsdt ? 'usdt-row' : ''}">
+      <td><div class="asset-name">${b.asset}</div></td>
+      <td><div class="val-free">${fmt(b.free)}</div></td>
+      <td><div class="val-locked${b.locked > 0 ? '' : ''}">${b.locked > 0 ? fmt(b.locked) : '<span style="color:var(--muted)">—</span>'}</div></td>
+    </tr>`;
+  }).join('');
+}
+
+async function logout() {
+  await fetch('/api/auth/logout', { method: 'POST', credentials: 'include' });
+  window.location.href = '/';
+}
+
+loadSpot();
+</script>
+</body>
+</html>