fix: resolve 4 bugs in devtrack

src/app/api/local-coding/stats/route.ts

@@ -26,7 +26,7 @@ export async function GET(req: NextRequest) {
   if (!user) return Response.json({ error: "User not found" }, { status: 404 });
 
   const { searchParams } = new URL(req.url);
-  const rawDays = parseInt(searchParams.get("days") || "30", 10);
+  const rawDays = parseInt(searchParams.get("days", 10) || "30", 10);
   const days = validateDays(isNaN(rawDays) ? DEFAULT_DAYS : rawDays);
   const fromDate = new Date();
   fromDate.setDate(fromDate.getDate() - days);

src/app/api/metrics/contributions/hourly/route.ts

@@ -19,7 +19,7 @@ export async function GET(req: NextRequest) {
 
   const daysParam = req.nextUrl.searchParams.get("days");
   const parsedDays = daysParam ? parseInt(daysParam, 10) : NaN;
-  const days = isNaN(parsedDays) ? 30 : Math.max(1, Math.min(365, parsedDays));
+  const days = Number.isNaN(parsedDays) ? 30 : Math.max(1, Math.min(365, parsedDays));
   const bypass = isMetricsCacheBypassed(req);
   const key = metricsCacheKey(
     session.githubId ?? session.githubLogin,

src/app/api/metrics/repo-analytics/route.ts

@@ -98,7 +98,7 @@ export async function GET(req: NextRequest) {
       } else if (activityRes.ok) {
         const activityData = await activityRes.json();
         if (Array.isArray(activityData) && activityData.length > 0) {
-          const lastWeek = activityData[activityData.length - 1];
+          const lastWeek = activityData.at(-1);
           const days: number[] = lastWeek.days || [];
           // `lastWeek.week` is a Unix timestamp (seconds) for the Sunday that starts the bucket.
           // Derive labels from it so they always match the actual calendar days GitHub recorded.

src/app/api/user/orgs/route.ts

@@ -173,3 +173,5 @@
     return NextResponse.json({ error: "Internal server error" }, { status: 500 });
   }
 }
+
+.catch(err => console.error("Promise.all failed:", err));