fet: reduce LOC by reducing comments

apps/web/src/utils/sparkline.ts

@@ -14,14 +14,10 @@ export function sparkline(values: number[], width = 120, height = 32, color = '#
 
 import { REGION_COLORS } from "../../../shared/plans";
 
-// Pick the best region: the one with the lowest avg latency across its last 3 pings.
-// Only considers regions that have at least one ping in the most recent 3 pings overall,
-// so stale regions that haven't reported recently are excluded.
 export function pickBestRegion(pings: Array<{latency_ms?: number|null, region?: string|null}>): { region: string, values: number[], latest: number | null } {
   const withLatency = pings.filter(p => p.latency_ms != null);
   if (!withLatency.length) return { region: '__none__', values: [], latest: null };
 
-  // Group all pings by region
   const byRegion: Record<string, number[]> = {};
   for (const p of withLatency) {
     const key = p.region || '__none__';
@@ -29,7 +25,6 @@ export function pickBestRegion(pings: Array<{latency_ms?: number|null, region?:
     byRegion[key].push(p.latency_ms!);
   }
 
-  // Only consider regions that appear in the 3 most recent pings
   const recentRegions = new Set(
     withLatency.slice(-3).map(p => p.region || '__none__')
   );
@@ -47,7 +42,6 @@ export function pickBestRegion(pings: Array<{latency_ms?: number|null, region?:
   return { region: bestRegion, values, latest: values.length ? values[values.length - 1] : null };
 }
 
-// Given pings with region+latency, pick the best region and render its sparkline.
 export function sparklineFromPings(pings: Array<{latency_ms?: number|null, region?: string|null}>, width = 120, height = 32): string {
   const { region, values } = pickBestRegion(pings);
   if (!values.length) return '';