fix(vscode): support Codex business spend limits

packages/vscode/src/quotaProviders.test.ts

@@ -7,6 +7,7 @@ import fs from 'node:fs';
 // configured and proceed straight to fetch.
 const ORIGINAL_FS = { ...fs };
 const AUTH = JSON.stringify({
+  openai: { access: 'test-token' },
   crof: { key: 'test-token' },
   neuralwatt: { key: 'test-token' },
 });
@@ -112,6 +113,31 @@ describe('Crof quota provider (VS Code parity)', () => {
   });
 });
 
+describe('Codex quota provider (VS Code parity)', () => {
+  test('surfaces spend_control individual limit for business accounts', async () => {
+    stubFetchReturning(() => Promise.resolve(mockResponse({
+      plan_type: 'business',
+      rate_limit: null,
+      credits: { has_credits: true, unlimited: false, balance: null },
+      spend_control: {
+        individual_limit: {
+          limit: '7500',
+          used: '2674.8724080324173',
+          remaining: '4825.127591967583',
+          used_percent: 36,
+          remaining_percent: 64,
+        },
+      },
+    })));
+
+    const result = await fetchQuotaForProvider('codex');
+
+    assert.equal(result.ok, true);
+    assert.equal(result.usage!.windows.credits!.usedPercent, 36);
+    assert.equal(result.usage!.windows.credits!.valueLabel, '2675 / 7500 used');
+  });
+});
+
 describe('NeuralWatt quota provider (VS Code parity)', () => {
   test('builds subscription window keyed by plan name (windowSeconds null)', async () => {
     stubFetchReturning(() => Promise.resolve(mockResponse(DOCUMENTED_SUBSCRIPTION_PAYLOAD)));

packages/vscode/src/quotaProviders.ts

@@ -40,6 +40,13 @@ type OpenAiUsagePayload = {
     balance?: number | string;
     unlimited?: boolean;
   };
+  spend_control?: {
+    individual_limit?: {
+      limit?: number | string;
+      used?: number | string;
+      used_percent?: number | string;
+    };
+  };
 };
 
 type GoogleModelsPayload = {
@@ -558,6 +565,20 @@ const fetchCodexQuota = async (): Promise<ProviderResult> => {
         valueLabel,
       });
     }
+    if (payload?.spend_control?.individual_limit) {
+      const spendLimit = payload.spend_control.individual_limit;
+      const used = toNumber(spendLimit.used);
+      const limit = toNumber(spendLimit.limit);
+      const valueLabel = used !== null && limit !== null
+        ? `${used.toFixed(0)} / ${limit.toFixed(0)} used`
+        : null;
+      windows.credits = toUsageWindow({
+        usedPercent: toNumber(spendLimit.used_percent),
+        windowSeconds: null,
+        resetAt: null,
+        valueLabel,
+      });
+    }
 
     return buildResult({
       providerId: 'codex',