fix: resolve 4 bugs in devtrack

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

@@ -26,7 +26,7 @@
   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/local-coding/sync/route.ts

@@ -279,7 +279,7 @@ export async function GET(req: NextRequest) {
 
   const { searchParams } = new URL(req.url);
   const rawDays = parseInt(searchParams.get("days") || "30", 10);
-  const days = validateDays(isNaN(rawDays) ? DEFAULT_DAYS : rawDays);
+  const days = validateDays(Number.isNaN(rawDays) ? DEFAULT_DAYS : rawDays);
   const fromDate = new Date();
   fromDate.setDate(fromDate.getDate() - days);
   const fromDateStr = fromDate.toISOString().slice(0, 10);

src/app/api/metrics/productive-hours/route.ts

@@ -223,7 +223,7 @@ export async function GET(req: NextRequest) {
   } else {
     const daysParam = searchParams.get("days");
     const parsedDays = daysParam ? parseInt(daysParam, 10) : NaN;
-    days = isNaN(parsedDays) ? 90 : Math.max(1, Math.min(365, parsedDays));
+    days = Number.isNaN(parsedDays) ? 90 : Math.max(1, Math.min(365, parsedDays));
   }
 
   const accountId = searchParams.get("accountId");