Bound dashboard page response sources

Proof: Production sampling found oversized strategy serialization and slow system probes; successful-trade details are capped at 50 and service probes are bounded with persisted fallback, with full tests and dashboard build passing.

Assumptions: The initial service snapshot is a truthful last-successful fallback when optional probes exceed their page budget.

Still fake: Pod-local PostgreSQL activity and production deployment evidence remain pending cluster access; exact all-time submission totals remain unavailable.

src/apps/operator-dashboard.mjs

@@ -735,7 +735,7 @@ async function loadDashboardPage({ page, auth }) {
   const runtimeConfig = buildRuntimeConfig(tradingConfig);
   const generatedAt = new Date().toISOString();
   const load = (name, loader, fallback) => safeSourceLoad(name, loader, fallback, sourceErrors);
-  const serviceSnapshots = await load('service_snapshots', loadServiceSnapshots, []);
+  const serviceSnapshots = await load('service_snapshots', loadServiceSnapshotsBounded, initialServiceSnapshots);
 
   if (page === 'funds') {
     const [portfolioMetric, inventorySnapshot, marketPrice, fundingObservations,
@@ -847,6 +847,30 @@ async function loadServiceSnapshots() {
   return Promise.all(services.map((service) => loadServiceSnapshot(service)));
 }
 
+async function loadServiceSnapshotsBounded() {
+  const timeoutMs = Math.min(2_500, Number(config.operatorDashboardUpstreamTimeoutMs) || 3_000);
+  let timeout;
+  try {
+    return await Promise.race([
+      loadServiceSnapshots(),
+      new Promise((_, reject) => {
+        timeout = setTimeout(() => {
+          const error = new Error(`service probes exceeded ${timeoutMs}ms`);
+          error.name = 'TimeoutError';
+          reject(error);
+        }, timeoutMs);
+      }),
+    ]);
+  } catch (error) {
+    logger.warn('dashboard_service_probe_budget_exceeded', {
+      details: { timeout_ms: timeoutMs, error: serializeError(error) },
+    });
+    return initialServiceSnapshots;
+  } finally {
+    if (timeout) clearTimeout(timeout);
+  }
+}
+
 async function loadServiceSnapshot(service) {
   const [stateResult, healthResult] = await Promise.allSettled([
     fetchUpstreamJson(`${service.base_url}/state`),

src/core/operator-dashboard.mjs

@@ -1981,7 +1981,9 @@ function buildTradeFunnelSummary(lifecycleRows = []) {
     successful_trade_gross_edge_estimate_count: grossEdgeEstimate.count,
     unresolved_submission_count: unresolvedSubmissions.length,
     no_trade_count: noTradeRows.length,
-    successful_trades: successfulTrades,
+    // Keep the dashboard response bounded while retaining the full count and
+    // aggregate estimate from the bounded lifecycle input.
+    successful_trades: successfulTrades.slice(0, 50),
     unresolved_submissions: unresolvedSubmissions.slice(0, 20),
     no_trade_rows: [],
     counts,