feat(qoder): show in Quota Tracker dashboard

Wire Qoder credits into the Quota Tracker card grid:

- Add `qoder` to USAGE_SUPPORTED_PROVIDERS so the connection passes the
  isUsageEligible filter at /api/providers/client and shows up in
  providerOptions on the dashboard.
- Reshape getQoderUsage so quota records (user, organization) live under
  `quotas` and scalar metadata (totalUsagePercentage, isQuotaExceeded,
  expiresAt) are siblings — the parser used to walk Object.entries(quotas)
  and would have rendered `totalUsagePercentage: 0.42` as a "0/0" row.
- Surface Qoder's expiresAt as resetAt on each quota record so the card
  shows when credits reset.
- Add a parser branch in ProviderLimits/utils.js: rename internal keys
  (user → "Personal", organization → "Organization"), drop empty org
  buckets so personal accounts don't render a misleading "0/0 Organization"
  row, and forward remaining/unit so the QuotaProgressBar can use them.
- Add Qoder's brand color (#EC4899) to ProviderLimitCard's color map.

42 tests still pass; build clean.

open-sse/services/usage.js

@@ -1175,26 +1175,40 @@ async function getQoderUsage(accessToken, proxyOptions = null) {
     if (!body) {
       return { message: "Qoder connected. Usage response was not JSON." };
     }
+    // Quota records live under `quotas`; scalar metadata
+    // (totalUsagePercentage, isQuotaExceeded, expiresAt) are surfaced as
+    // siblings so the dashboard parser doesn't try to render them as rows.
     const userQuota = body.userQuota || {};
     const orgQuota = body.orgResourcePackage || {};
+    // Qoder publishes a single absolute reset timestamp (`expiresAt` in ms);
+    // surface it on every quota record as ISO so the table can render
+    // "resets at" alongside used/total.
+    const expiresAtMs = Number.isFinite(Number(body.expiresAt)) && Number(body.expiresAt) > 0
+      ? Number(body.expiresAt)
+      : null;
+    const resetAt = expiresAtMs ? new Date(expiresAtMs).toISOString() : null;
     const quotas = {
       user: {
         total: Number(userQuota.total) || 0,
         used: Number(userQuota.used) || 0,
         remaining: Number(userQuota.remaining) || 0,
         unit: userQuota.unit || "credits",
+        resetAt,
       },
       organization: {
         total: Number(orgQuota.total) || 0,
         used: Number(orgQuota.used) || 0,
         remaining: Number(orgQuota.remaining) || 0,
         unit: orgQuota.unit || "credits",
+        resetAt,
       },
+    };
+    return {
+      quotas,
       totalUsagePercentage: Number(body.totalUsagePercentage) || 0,
       isQuotaExceeded: !!body.isQuotaExceeded,
-      expiresAt: Number(body.expiresAt) || null,
+      expiresAt: expiresAtMs,
     };
-    return { quotas };
   } catch (error) {
     return { message: `Qoder connected. Unable to fetch usage: ${error.message}` };
   }